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 (84 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 (19 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
rely	v: to require a specific thing or the assistance and support of someone or something to continue, run properly, or succeed.
vision	n: the ability to think about or see the future with imagination and intelligence; the faculty of being able to see
presbyopia	n: a visual impairment that occurs with age, in which the lens of the eye loses elasticity and the ability to focus on close objects; farsightedness caused by reduced accommodation power of the eye due to the aging process
hint	n: an indirect suggestion; a slight but appreciable amount of something
bifocal	adj: describing lenses that contain two distinct optical powers, typically used for correcting both nearsightedness and farsightedness in the same eyeglasses
lens	n: a transparent optical device with curved sides, used in an optical instrument that makes objects seem larger, smaller, clearer, etc.; (metaphor) the basic thoughts or mindsets through which someone sees or understands the environment or situation
centimeter	n: a unit of measurement of length in the metric system, equivalent to one-hundredth of a meter
radial	adj: of or relating to rays or the radii of a circle; spreading out from a central point
figurative	adj: using figures of speech, especially metaphors, to create a special effect; not literal
blur	n: a faint or indistinct image or sound; something that is not clear or distinct; (verb) to become unclear; to lose clear vision
moving	adj: causing strong emotions or feelings, especially sadness or sympathy
focal	adj: relating to an important or central point or area; sharp or precise in focus or detail
tune	n: a musical composition or set of musical notes that are played or sung; (verb) to adjust or set something to a specific condition or standard
necessarily	adv: in an essential manner; in such a way as could not be otherwise
constantly	adv: all the time
invention	n: the creation of a new device or process resulting from study and experimentation; the act of inventing
spectacle	n: something or someone seen, especially a notable or unusual sight; an optical device consisting of a frame that houses a pair of lenses for correcting defective vision
progressive	adj: relating to or supporting development or advancement, especially social or political one
rid	v: to make someone or something free of unwanted or unpleasant tasks, objects, or person
vary	v: to become different in terms of size, shape, etc.
downside	n: the negative aspects or consequences of something; the potential for loss or failure
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
split	v: to divide, or to make something divide into two or more parts, especially along a particular line
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
dominant	adj: more important, influential, or easy to notice than anything else of the same type
brain	n: the organ inside the head that is responsible for one’s movement, thought, memory, and feeling
intelligent	adj: having the capacity for thought and reason, especially to a high degree
slightly	adv: in a small degree or extent; a little
judge	n: a person who makes decisions in a court of law; (verb) to determine the result of or form a critical opinion of something
binocular	n: (often used in plural form) a device or instrument designed for use with both eyes simultaneously, enabling a viewer to see objects in a three-dimensional perspective and with greater depth perception; (adjective) relating to or involving both eyes, especially when viewing through a device such as a pair of binoculars; involving or requiring the use of both eyes
anatomy	n: the scientific study that deals with the physical structure of humans, animals, or plants
crystalline	adj: resembling crystal in clarity, transparency, or brilliance; having a highly ordered and symmetrical molecular structure
surrounding	adj: that is near or around, or closely encircling something
deform	v: to change or distort the shape or appearance of something; to become misshapen or distorted
stiffen	v: to make or become stiff or rigid; to become inflexible or unyielding in one’s attitude or behavior
static	adj: not moving or not capable of moving, not changing or not capable of changing
optical	adj: of or relating to or light or the ability to see; (noun) the science of light and vision, and to instruments and techniques used in the study and application of light
equivalent	n: having the same value, quality, meaning, purpose, etc.
pirate	n: (especially in the past) a person who attacks and robs ships at sea
peg	n: a small cylindrical or tapered pin used to fasten or secure something, such as clothing, on a line, or in carpentry and woodworking; (verb) to fasten or secure something using a peg or similar object; to mark or indicate a level or position using a peg or similar object
modern	adj: of or belonging to the present time or recent times
prosthetic	adj: of or relating to an artificial part of the body, such as a limb, a heart, or a breast implant
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
liquid	n: a substance, such as water or oil that flows freely and is neither a solid nor a gas
electron	n: a tiny particle with the negative electrical charge
crystal	n: a solid material with many even sides that is formed naturally when the substance becomes solid and has a highly regular atomic structure; clear and colorless glass made of almost pure silica
trade-off	n: a balance achieved between two desirable but incompatible features; an exchange that occurs as a compromise
skimp	v: to be stingy or frugal; to cut corners or reduce expenditure; to do something hastily or incompletely, often to save time or resources
visual	adj: relating to seeing or sight
desire	n: a strong feeling of wanting to have or do something
complexity	n: the state or quality of being complicated or intricate and difficult to understand
equation	n: the act of regarding as equal; (mathematics) a statement that expresses the equality of two expressions by connecting them with the equals sign
intelligence	n: the ability to learn, comprehend, or make judgments or conclusions based on reasons
prototype	n: a first or preliminary example of something such as a device or vehicle from which other forms are developed
virtual	adj: being actually such in almost every respect; existing in essence or effect though not in actual fact
augment	v: to increase the size, extent, quantity, etc. of something by adding something to it
estimate	v: to guess or calculate the cost, size, value, etc. of something
triangle	n: a three-sided polygon with three angles; something that has three sides or parts
gaze	v: to stare at something or someone for an extended time, usually out of surprise or adoration, or because you are thinking about something else
reliability	n: the quality of being able to be trusted or believed in doing what someone desires or requires
sensor	n: a device that receives a signal or stimulus such as heat, pressure, light, motion, etc. and responds to it in a specific manner
fuse	n: a small part in an electrical device or machinery that can interrupt the flow of electrical current when it is overloaded; (verb) to become plastic or fluid or liquefied from heat
accord	n: an official agreement or treaty between two organizations, countries, etc.; (verb) allow to have
device	n: a piece of equipment, tool, or technology that serves a particular purpose or function, often mechanical or electronic
recruit	v: to persuade someone to work for a company; to find new members for an organization, the armed forces, etc.
convinced	adj: completely certain about something; having a strong belief or conviction in a particular religion
participate	v: to take part in something
compromise	v: to settle a problem or disagreement by mutual concession
colleague	n: one of a group of a coworker, especially in a profession or a business
bulky	adj: taking up much space or being difficult to move because of its size or weight; large and unwieldy
component	n: one of several parts that combines with others to form something bigger
intention	n: something you want to do and are going to do
industrial	adj: of or relating to or resulting from industry
strap	n: a long, narrow strip or belt of leather, fabric, or another material used for binding, fastening, or supporting something or someone; a band or string that attaches one object to another, often used to secure items during transport
algorithm	n: a set of rules or rigorous instructions typically used to solve a specific problem or to perform a computation
robust	adj: sturdy and healthy in form, constitution, or construction; strong enough to withstand or overcome intellectual challenges or adversity
start-up	n: a newly established company or business
eventually	adv: finally, particularly after a long time or a lot of struggle, complications, and so on
norm	n: something that is regarded as usual, typical, or standard
improve	v: to make or become better
incorporate	v: to include something as a part of a larger entity
efficient	adj: performing at the highest level of productivity with the least wasted effort or resources; capable of achieving maximum output with minimum wasted effort, time, or materials
outperform	v: to be or do something compared to others of a similar type
tradition	n: a belief, custom, or way of doing something that has been passed down from generation to generation within a group or society