Important (Read me first!)

This post is a commentary and does not contain any copyrighted material of the reference source.

We strongly recommend accessing/buying the reference source at the same time.

Reference Source

You can understand each word more deeply by utilizing the following YouTube Posts and PDF files.
Also, see how to use Englist.me?

All Words (126 Words)

You can learn all the words from basic to advanced levels in the order they appear in the contents.
If you want learn all words quickly, you can use Quick Look Video.

Quick Look


YouTube Post

Vocabulary Builder

Advanced Words (44 Words)

If you are confident in your vocabulary, you may prefer to study with content that covers only advanced-level words.

YouTube Post

Vocabulary Builder

Word List

You can quickly review the words in this content from the list below.

hummingadj: producing a continuous, low, vibrating sound like that of the bee
settlementn: an official agreement that brings an argument to a close; the process of establishing permanent residence in a place.
continentn: one of the earth’s large landmasses; (adjective) abstaining from your feelings, especially your desire to have sex
isolatev: to physically or socially separate someone or something from other people or things
junglen: an area of tropical forest where in which trees and plants grow very thickly
tundran: a vast, treeless, and typically frozen plain in the Arctic regions, where the subsoil is permanently frozen
profoundadj: extremely great; sensed or experienced very strongly; displaying a high level of knowledge or comprehension
permanentadj: lasting for a long time without essential change
geologyn: a science that deals with the history of the earth as recorded in rocks
suddenlyadv: quickly and unexpectedly
disappearv: to cease to exist or be visible
maintainv: to continue to uphold or sustain; to keep in a particular state or condition; to assert or declare something to be true
backfirev: to have an opposite and undesirable effect to what was intended; to make a sudden noise like an explosion
immediatelyadv: now or without delay
refineryn: a facility that is used to process, purify, and refine raw materials such as oil or metal into a more useful or valuable form
malfunctionv: to fail to operate or work properly; to break down or stop functioning as expected or intended; (noun) a failure or defect in the way a machine, system, or device is supposed to operate
blazev: to burst into flame or light up intensely; to move in a trailblazing manner; to shine brightly or conspicuously
statisticsn: the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data
undergroundadj: under the surface of the ground; a secret group organized to achieve a specific purpose, such as overthrowing the government or occupying a force
railn: a long, thin piece of metal or wood that is used to make fences or as a support for something; (verb) to complain bitterly
drainagen: the process of draining or the condition of being drained; the natural or artificial removal of water from an area or a system, usually due to rainfall or melting snow
pumpv: to cause water, air, gas, etc. to move from one place to another by using mechanical equipment; to get or supply something such as money, information, etc. in significant quantities
abandonv: to leave a place, thing, or person with no intention of returning; (noun) a feeling of extreme emotional intensity
floodn: a large amount of water flowing beyond its normal limits; an overwhelming number or amount
tunneln: an underground or underwater passage, typically for trains or cars
emergencyn: a sudden unforeseen crisis usually involving danger that requires immediate action
catastrophicadj: extremely harmful; causing physical or financial destruction
gradualadj: happening slowly over a long period of time or distance; not steep or abrupt
weedn: a wild plant growing where it is not wanted and in competition with cultivated plants
erodev: to gradually wear away or break down (rock, soil, or other material) through the action of wind, water, or other natural agents; to gradually weaken or undermine (something) over time
urbanadj: relating to or located in a town or city
temperateadj: mild or moderate in temperature or climate; exhibiting self-restraint, particularly about the consumption of food, drink, or other indulgences; showing moderation or restraint in behavior or attitude
climaten: the weather in a particular location averaged over some long period
cyclen: an interval during which a recurring sequence of events occurs; a bicycle or motorcycle
thawv: to become less rigid or hostile; to melt, soften, or become more friendly
crackv: to break or cause to break without dividing into separate parts; (noun) a line on the surface of something along which it has separated without breaking
pavev: to cover something with a hard, flat material such as stones, bricks, or concrete, to make it suitable for travel or use
concreteadj: existing in a physical or material form rather than an abstract one; based on facts rather than ideas or guesses; made of or covered with cement
leakv: to allow liquid or gas to get in or out from a hole or crack in a pipe or container
reactionn: a response that reveals a person’s feelings or attitude; (in chemistry) a process in which one or more substances are changed into others
skyscrapern: a very tall building, typically one in a city
bucklev: to bend out of shape, as under pressure or from heat; (noun) a device used for fastening two loose ends of a belt or strap
tumblev: to fall suddenly, often uncontrollably; to topple or turn over; to decline sharply and quickly in value, quality, or performance
deltan: a triangular area of low and flat land that is formed when a river flows into a larger body of water and deposits sediment; an object shaped like an equilateral triangle
eventuallyadv: finally, particularly after a long time or a lot of struggle, complications, and so on
tributaryn: a stream or river that flows into a larger one
crushv: to press it firmly, usually with your hands or a tool, so that it becomes flat or smaller
ruraladj: of or relating to the countryside
suburbn: an outlying district or residential area of a city or town, typically comprising middle-class and affluent neighborhoods
decayn: the process or state of rotting or decomposition by natural causes such as the action of bacteria and fungi; (verb) to rot or decompose through natural causes
largelyadv: virtually entirely; to a large degree
moldn: a hollow container used to give shape to liquid or soft substance, which then becomes solid in the same shape as the container; a soft, green, or gray growth that forms on stale food or objects exposed to warm, moist air for too long
bugn: any tiny insect; a fault or defect in a computer program, system, or machine
rodentn: a small, gnawing mammal, such as a mouse, rat, or squirrel, that has sharp incisors and typically has a long, thin tail
infestationn: the presence or invasion of a large number of harmful or undesirable pests, parasites, or microorganisms in a specific area or host
contestn: a competition in which people compete for supremacy in a sport or other activity; a struggle between rivals
beamn: a long, sturdy piece of timber, metal, or other material used to support a structure or span a distance; a ray or stream of light emitted by a source
rotv: to decay, or cause something to decay, naturally and gradually
sagv: to droop or hang down, especially due to a lack of support or the weight of something
collapsev: to fall down or give way suddenly, often after breaking apart
heapn: an untidy pile or mass of something; a large number or amount or extent of something
lizardn: a reptile that has a relatively long body, two pairs of legs, and a tapering tail
adoptv: to choose to follow something; to legally take a child from another family and care for them as if they were one’s own
hyacinthn: (also “jacinth”) a fragrant flowering plant with clustered flowers that grow on a tall, spiky stem, typically in shades of blue, purple, or pink
poisonousadj: containing or producing toxic substances; harmful or dangerous to living beings, often causing illness, injury, or death; capable of causing serious harm or destruction
giantadj: enormous; much bigger or more important than similar items usually are
hogweedn: a large, invasive plant species with toxic sap that can cause severe skin irritation, blistering, and scarring; other toxic plant species in the same family called Apiaceae
overgrowv: to grow or thrive over so as to cover with herbage
sinkv: to submerge or go down below the surface of a liquid or substance; to decline or deteriorate; to cause something to go down into a liquid substance or sink into something else
crumblev: to break or fall apart into small pieces or fragments, especially due to age, decay, or lack of support
soiln: the top layer of Earth in which plants grow
acidityn: the level of acid content in a substance or environment; the quality of being sour or tart; sharpness or harshness in taste or manner
plummetv: to fall or drop suddenly and steeply; to decline rapidly or sharply
thrivev: to grow vigorously; to make steady progress
biodiversityn: the number and variety of plants and animals that exist in a particular area or the world and make a balanced environment
extendv: to broaden in scope, range, or area
kingdomn: the country ruled by a king or queen
uncheckedadj: not restrained or controlled; not examined or scrutinized; allowed to proceed without restraint or interference
nativeadj: connecting with or describing someone’s birth country or place of birth, or someone born in a specific country or place
ventn: a small opening to escape or release gas, air, liquid, etc.; activity or process that frees or expresses strong creative energy or emotion
leftoveradj: not consumed or used at the end of something
infrastructuren: the basic systems, services, or features that are necessary for an organization or country, such as transport and power supplies
doomn: death, destruction, or some other terrible situation that cannot be avoided
cousinn: the child of your aunt or uncle
domesticatev: to take control of animals or plants to provide food, power, or company
survivev: to live or exist despite a dangerous event or period
resourcefuladj: showing creativity and ability to find quick and practical solutions to problems
conversev: to talk informally
pollutionn: the introduction of harmful substances or waste into the natural environment that causes adverse change
migrationn: the movement of animals to a new location, frequently as the seasons change
disruptv: to prevent or stop something, especially an event, activity, or process, from continuing in the usual way by causing a problem or disturbance
blinkv: to shut and open the eyes quickly; to gleam or glow in a regular or intermittent way
communicatev: to share or exchange information with others by speaking, writing, moving your body, or using other signals
towern: a structure that is exceptionally high in proportion to its width and either forms part of a building or stands alone
tensionn: a state of mental or emotional strain or excitement; the state of being stretched tight
mosquiton: a small flying insect whose female bites people and animals and sucks their blood, and sometimes transmits serious diseases such as malaria
multiplyv: to add a number to itself a specified number of times; to increase or cause to increase very much in number or quantity
endlesslyadv: in a way that continues for a long time or seems to have no end or limit
human-madeadj: created or produced by humans; artificial
nurseryn: a place where babies and young children are cared for while their parents are at work; a place where plants are grown and nurtured, especially for commercial purposes
rubv: to move one’s hand or an object over the surface of something with pressure
tirev: to become weary or fatigued, often due to physical or mental exertion; to cause someone to feel weary or fatigued; (noun) a rubber covering that is placed around the rim of a wheel, which provides traction and absorbs shock while driving
faunan: the animal life of a particular region, habitat, or geological period
floran: all the plants in a particular region or time, typically regarded as a whole
flourishv: to grow or develop vigorously or successfully
recoverv: to return to a former condition, health, mind, or strength
millenniumn: a span of 1000 years, or the 1000th anniversary (plural: millennia)
tracev: to find or discover someone or something that was lost
industrialadj: of or relating to or resulting from industry
revolutionn: a large-scale attempt to overthrow the government of a country, often using violence or war;
unyieldingadj: rigid or inflexible in attitude, behavior, or opinion; not willing to compromise or change; resistant to pressure or persuasion
graniten: a tough, durable, and coarse-grained igneous rock often used in construction for buildings, monuments, and sculptures
chemicaladj: relating to or connected with chemistry;
compositionn: the different parts of something’s elements or ingredients; the way in which the different components are organized; a piece of music written by someone
bronzen: a dark red-brown metal that is created by combining copper and tin
sculpturen: the art of creating three-dimensional objects or forms, typically by carving, modeling, or casting in a variety of materials such as stone, wood, metal, or clay
recognizableadj: easy to become aware of or identify
buryv: to place a dead body in the ground, grave, or tomb
remnantn: a small remaining quantity of something, considered separately from what has been lost or destroyed; a surviving piece or fragment of something
floodplainn: an area of flat land adjacent to a river or stream that is subject to periodic flooding
preservev: to keep or maintain a particular quality, feature, etc., especially to prevent it from decaying, being damaged, or being destroyed
fossiln: any preserved remains, impression, or trace of any once-living thing that has become hard and turned into rock
wipev: to clean or dry something by rubbing with a piece of cloth or paper or one’s hand and removing dirt, food, or liquid
planetn: any of the nine large celestial bodies that circle in the solar system; any celestial body that revolves around a star
humanityn: all people living on the earth; the quality or state of being human rather than an animal, a machine, etc.
investigatev: to conduct a systematic or formal inquiry to identify and evaluate the facts of a crime, problem, statement, etc. to establish the truth