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ACT English and World Knowledge - Physical Features

Here you will learn some English words related to physical features, such as "flammable", "grimy", "synthetic", etc. that will help you ace your ACTs.

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ACT Vocabulary for English and World Knowledge
odor
[noun]

a distinctive and often unpleasant smell or scent that is produced by a substance or object

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aroma
[noun]

a pleasant and noticeable smell that adds to the experience of something

Ex: The aroma of spices wafted from the simmering pot of curry .
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tang
[noun]

a sharp and distinctive taste, typically associated with acidity or a lively and refreshing quality

Ex: The pickles offered a crunchy texture along with a tang that complemented the sandwich .
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capacity
[noun]

the amount or number that something can contain or a place can accommodate

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buoyancy
[noun]

the tendency of an object to float or rise in a fluid, like water or air, due to the upward force exerted by the fluid

Ex: Understanding buoyancy helps engineers design efficient boats and submarines .
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velocity
[noun]

the speed at which something moves in a specific direction

Ex: High-velocity winds caused damage to buildings and trees during the storm.
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the ability of an object or material to withstand wear, pressure, or damage over time, without significant deterioration

Ex: The durability of stainless steel appliances makes them a popular choice for kitchens .
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splendor
[noun]

the impressive beauty or magnificence of something, often characterized by richness, brilliance, or grandeur

Ex: The opera house interior was designed with luxurious splendor, featuring crystal chandeliers and velvet curtains .
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glitz
[noun]

the flashy or extravagant appearance or effect of something, often associated with glamour, sparkle, or showiness

Ex: The ballroom was transformed into a scene of glitz and elegance for the charity gala .
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glamour
[noun]

the exciting and attractive quality of a person, place, etc. that makes them desirable

Ex: Despite the early morning and hard work , the model maintained an air of effortless glamour during the photoshoot .
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the process of burning, characterized by the chemical reaction between a fuel and oxygen that produces heat and light

Ex: Understanding combustion is essential in designing efficient energy systems .
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ignition
[noun]

the process or act of setting something on fire or starting a combustion reaction, especially in an engine or device

Ex: The ignition of the match lit up the dark room .
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inert
[Adjective]

not moving or active

Ex: The inert body of the bear lay motionless in its den during hibernation .
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artificial
[Adjective]

made by humans rather than occurring naturally in nature

Ex: Artificial flavors and colors are added to processed foods to enhance taste and appearance.
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synthetic
[Adjective]

produced artificially, typically based on its natural version

Ex: She chose synthetic turf for her backyard instead of natural grass for its low maintenance and durability .
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mechanical
[Adjective]

(of an object) powered by machinery or an engine

Ex: The mechanical lawnmower relies on a gasoline engine to power its blades and propel itself across the lawn .
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tangible
[Adjective]

capable of being felt or touched

Ex: She sought tangible evidence to support her theory .
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sweltering
[Adjective]

extremely hot and uncomfortable, often causing sweating

Ex: The sweltering afternoon sun beat down relentlessly.
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fragrant
[Adjective]

having a pleasant or sweet-smelling aroma

Ex: The chef skillfully prepared a fragrant broth , infusing it with herbs and spices to enhance the soup 's flavor .
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pristine
[Adjective]

perfectly clean or spotless, devoid of any dirt, marks, or impurities

Ex: After the maid service , the hotel room appeared pristine, inviting guests to relax in comfort .
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grimy
[Adjective]

covered with a thick layer of dirt

Ex: The old warehouse was filled with grimy walls and dusty floors .
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perishable
[Adjective]

having the ability to decay, rot, or spoil quickly, particularly of foods

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spatial
[Adjective]

relating to space or the physical dimensions of an area or object

Ex: Virtual reality technology offers immersive spatial experiences for users in simulated environments .
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topological
[Adjective]

related to the arrangement and connections of spaces or objects that remain unchanged under continuous transformations like stretching or bending

Ex: Understanding topological principles helps architects create innovative building designs .
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immaculate
[Adjective]

free from any stain or dirt

Ex: He meticulously maintained his tools, ensuring they remained in immaculate condition for every project.
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airtight
[Adjective]

sealed or closed completely to prevent air or gas from entering or escaping

Ex: Airtight seals on windows and doors enhance energy efficiency in buildings.
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ballistic
[Adjective]

related to the flight or motion of objects that are propelled or shot, especially bullets, missiles, or projectiles

Ex: Ballistic missile defense systems protect against airborne threats.
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gruffly
[Adverb]

in a rough, harsh, or abrupt manner, often indicating blunt or unfriendly speech or behavior

Ex: The old man gruffly ordered the children to stay off his lawn .
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flammable
[Adjective]

easily and quickly burned

Ex: The chemicals in the lab were labeled as highly flammable, requiring careful handling .
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caustic
[Adjective]

the ability to chemically corrode or eat away materials, typically referring to strong acids

Ex: The scientist conducted experiments to study the effects of caustic substances on various materials .
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unruffled
[Adjective]

related to water that is calm, smooth, and undisturbed, often with a surface that reflects light evenly

Ex: The pond was so still and unruffled that it seemed like a mirror reflecting the landscape .
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dank
[Adjective]

damp, musty, and often cold or unpleasantly humid

Ex: The dungeon was cold and dank, its stone walls covered in moss and mildew.
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viscous
[Adjective]

thick and sticky, resembling the consistency of glue

Ex: The viscous substance oozed slowly from the container .
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rickety
[Adjective]

shaky, unstable, or likely to collapse due to being old or poorly constructed

Ex: The wheels of the rickety cart wobbled as it rolled down the bumpy road.
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untainted
[Adjective]

free from any form of corruption, pollution, or impurity and external influences

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savory
[Adjective]

pleasing or agreeable to the sense of taste

Ex: The chef prepared a savory sauce to accompany the grilled vegetables , enhancing their natural flavors .
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old-fashioned
[Adjective]

no longer used, supported, etc. by the general public, typically belonging to an earlier period in history

Ex: Despite having GPS on his phone , John sticks to his old-fashioned paper maps when planning road trips .
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outdated
[Adjective]

no longer matching the current trends or standards because of being too old

Ex: With the rise of streaming , DVDs are often considered outdated by most consumers .
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obsolete
[Adjective]

outdated and gone out of style, often replaced by more current trends or advancements

Ex: Many obsolete technologies can still be found in antique shops .
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modernized
[Adjective]

updated with modern technology or methods

Ex: The historic house was modernized with central heating and electricity.
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to reek
[Verb]

to emit a strong and offensive odor

Ex: If food scraps are left unattended , they can start to reek.
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to cast a shadow over something, often implying that something else is more prominent or important

Ex: The news of the earthquake overshadowed the city 's annual festival .
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ACT English and World Knowledge
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