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 (95 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

Podcast

Advanced Words (20 Words)

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

Word List

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

Word	Meaning	Advanced
pitch	n: the property of sound that varies with variation in the frequency of vibration; the degree of a slope, especially of a roof; short presentation for selling or sharing something
cave	n: a large hole in the side of a hill, cliff, mountain, or under the ground
bat	n: a nocturnal animal with wings that flies and feeds at night, similar to a mouse; a piece of wood with a handle used for hitting the ball in sports including baseball, cricket, and table tennis
navigate	v: to plan and direct the way that a ship, plane, etc. will travel, often by using a map
rocky	adj: full of or abounding in rocks; of, relating to, or made of rock
topography	n: the arrangement and physical features of a particular area or region, including its natural and artificial elements and their relative positions and elevations; the study or description of this arrangement and these features
incredible	adj: unbelievable; enormous
flee	v: to leave by running away, especially out of fear or danger
naval	adj: of or relating to ships, sailors, or the navy
unique	adj: being the only one of its kind; unlike anything else
ultrasound	n: higher frequency sound than humans can hear
molecule	n: a group of two or more atoms held together by attractive forces known as chemical bonds
medium	adj: of a size, amount, or level that is average or intermediate; (noun) a means or instrumentality for storing or communicating information
vibrate	v: to move or cause anything to move fast and in small increments from side to side
pulse	n: the regular heartbeat as it sends blood around the body, especially when it is felt at the wrist or side of the neck; a solid regular vibration of sound, electric current, light, or other waves
distance	n: the amount of space between two points, measured in units such as miles, meters, or kilometers; the extent, scope, or range between two things, such as distance or emotional distance
peak	n: the point to which something or someone is at its strongest, best, or most successful; the pointed top of a mountain
determinant	n: a factor, circumstance, or condition that contributes to the shaping, influencing, or determining of a particular outcome or result
frequency	n: an ordered array of colors into which a light beam can be split
cycle	n: an interval during which a recurring sequence of events occurs; a bicycle or motorcycle
hertz	n: the unit of frequency, equal to one cycle per second, often used to describe the frequency of electromagnetic waves or electronic signals
exceed	v: to surpass or go beyond a limit, expectation, or requirement; to be better or greater than anticipated or desired
humming	adj: producing a continuous, low, vibrating sound like that of the bee
emit	v: to give off or send out something such as light, heat, sound, gas, etc.
bounce	v: to cause to move up or away after hitting a surface; to spring back
nook	n: a small corner, alcove, or recess, especially one in a room or garden providing a seat or space for quiet
cranny	n: a small, narrow opening or crack, especially in a wall or rock
echo	n: a sound heard after being reflected off a surface, such as a wall or a cliff
nuance	n: a subtle or slight degree of difference in appearance, meaning, sound, someone’s feeling, etc.
chain	n: a series of connected links or objects; a system or group of interconnected elements; a restraint or shackle
internal	adj: of or relating to the inside of something
environment	n: the natural world such as air, water, and land in which humans, animals, and plants live
process	n: a series of actions or operations performed to achieve a particular outcome or goal; a systematic procedure or approach used to accomplish a specific task or objective; a method of treating milk to make it suitable for consumption or use in other dairy products
inspire	v: to make somebody fill with the desire, confidence, or enthusiasm, especially to do something creative
beam	n: 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
detect	v: to find or recognize something, especially something difficult to see, hear, etc.
submarine	n: a type of underwater vehicle or vessel that can operate beneath the surface of the water; (adjective) beneath the surface of the sea
tight	adj: fixed, fastened, or kept together firmly or closely
medical	adj: relating to the treatment of illness or injuries; relating to the practice of medicine
experiment	n: the scientific test conducted to observe what happens and gain new knowledge
technique	n: a particular way or art of doing something that needs skill
invasive	adj: spreading very quickly, and often aggressively, and difficult to stop
evaluate	v: to assess or estimate the quality, significance, quantity, or value of something
damage	v: to harm or cause injury to something or someone, often resulting in decreased value or functionality; to impair or negatively affect something, such as a reputation or relationship; (noun) harm or injury that is caused to a person, thing, or entity
tissue	n: an ensemble of similar cells of the animal or plant that together carry out a specific function
gallbladder	n: a small, pear-shaped organ located near the liver that stores and releases bile into the small intestine to aid in digestion
tumor	n: a mass of diseased tissue that forms when cells in the body divide and grow in an uncontrolled way
clot	n: a thick mass or lump of coagulated liquid, especially blood; a group of people or things that form an obstructive, unsympathetic, or resistant force
explore	v: to travel to or penetrate an area or a country to learn about it; to thoroughly examine a subject or a possibility to learn more about it
fetus	n: an unborn or unhatched animal in the later stages of development showing the main recognizable features of the mature animal
conduct	v: to organize and carry out a particular activity
gel	n: a semi-solid substance, often transparent or translucent, that is used in various products from personal care to food to medicine, and which typically consists of a gelling agent that thickens the liquid
clarity	n: the quality of being coherent and understandable; the quality of transparency or purity
goo	n: a sticky or slimy substance, often of indeterminate or unknown composition; a slang term used to describe something messy, chaotic, or confusing
substance	n: the real physical material of which a thing or person consist; the most important or main part of some idea or experience; an illegal drug
airtight	adj: tightly sealed or enclosed, with no spaces through which air or other substances can pass; completely secure or reliable
seal	v: to close or fasten an envelope, etc. securely; (noun) a large marine mammal that chiefly lives in cold regions and comes on shore to breed
wand	n: a slender rod or stick, especially one used for magic or divination; a rod or staff carried by certain officials as a symbol of authority
operator	n: a person who uses and controls machinery or equipment; a mathematical symbol used to perform calculations
liquid	n: a substance, such as water or oil that flows freely and is neither a solid nor a gas
urine	n: a liquid by-product of metabolism in humans and in many other animals that are released from the body when you urinate
amnion	n: the innermost sac that surrounds and protects the fetus during pregnancy, filled with amniotic fluid which cushions and protects the fetus
fluid	n: a substance that can flow and is not solid
encounter	v: to face something, particularly something unpleasant or difficult, while attempting to do something else; to meet, especially unexpectedly
solid	adj: hard or firm; characterized by good substantial quality
structure	n: the way of construction of something and the arrangement of its parts, or a complex thing constructed of many parts
render	v: to bring someone or something into a particular state; to provide something such as service, help, etc.
dot	n: a very small circular mark, especially one that is printed
dense	adj: containing a large number of people or something with little space between them
faint	adj: not strong, clear, or vigorous; slight or weak
depth	n: the distance between the top and bottom of something; between the top surface and a distance below it
bypass	n: an alternative road, channel, pipe, or connection that allows flow while the main one is closed or obstructed; (verb) to go past or round
penetrate	v: to pass into or through something, often by overcoming resistance
composite	adj: made up of different parts, elements, or substances; (noun) something made from two or more different substances
zoom	v: to move along very quickly; (noun) the act of rising upward into the air
cascade	n: a small waterfall or series of small waterfalls; a succession of stages or operations or processes or units
visualize	v: to form a mental image or concept of something; to make something visible
movement	n: a group of people working together to achieve a shared goal, especially a political, social, or artistic one; the process of moving or being moved, physically or figuratively
incredibly	adv: in a way that is very difficult to believe; exceedingly or extremely
diagnose	v: to determine or distinguish the nature of a problem or an illness through a careful analysis
develop	v: to grow or expand; to improve or refine through a process of progress and refinement, often to achieve greater sophistication or complexity; to elaborate or add detail to something that is in the process of being created
deviate	v: to depart from an established course or plan; to change direction or take a different route or approach
brain	n: the organ inside the head that is responsible for one’s movement, thought, memory, and feeling
spine	n: the series of bones running down the center of the back that protect the spinal cord and support the body; the backbone or vertebral column
natal	adj: relating to birth or the place of one’s birth; connected with the beginning or origin of something
advantage	n: a condition or circumstance that puts one in a favorable or superior position; a beneficial feature or asset that someone or something has
radiation	n: the energy that comes from a nuclear reaction in the form of rays, waves, or particles and that can be hazardous to health
surgery	n: medical treatment of injuries or diseases involving an incision with instruments and often removing or replacing some parts of the body; the branch of medical science that treats disease or injury by operative procedures
procedure	n: a way of doing something, especially the official or well-known way
negative	adj: having the quality of something bad or harmful; expressing refusal
prop	n: a piece of wood, metal, etc., placed beneath or against something to support it or keep it in position; a system, institution, or person that gives help or support to someone or something
sensitive	adj: able to notice slight changes, signals, or influences; able to feel or perceive other’s feelings; susceptible to the things people say or do
typical	adj: having the usual characteristics or traits of a specific group of things
modern	adj: of or belonging to the present time or recent times
emergency	n: a sudden unforeseen crisis usually involving danger that requires immediate action