having a desire to do something

to force (someone) to do something

to cause (someone) to behave in a particular way

to give examples in order to make (something) easier to understand

fear or nervousness about what might happen

the smallest possible amount of a particular substance that has all the characteristics of that substance

a journey by a group of people to explore or do research

feeling or showing doubt about doing something; not excited to do something

possible; capable of becoming real

continuing to do something or to try to do something even though it is difficult or other people want you to stop

to improve something by making small changes

a problem that makes progress more difficult or success less likely

the careful use of natural resources (such as trees, oil, etc.) to prevent them from being lost or wasted

the common opinion that people have about someone or something; the way in which people think of someone or something

the willingness to start a business and risk loss in order to make money

Eventually; some time in the near future

moving or doing things in a very awkward way and tending to drop or break things

emotional; showing your emotions easily

having or showing a tendency to disagree or argue with other people in an angry way

to connect (someone or something) to another person or thing — usually used as (be) tied to

good enough; of a quality that is good or acceptable but no better than that

very bad, serious, or unpleasant

to eat, drink (food); to use (resources)

to say that (something) is because of (someone or something)

to change level, strength, or value frequently

to say the opposite of (something that someone else has said); to deny the truth of (something)

the ability to do something or produce something without wasting materials, time, or energy

something (such as a drug) that makes you more active or gives you more energy

able to think clearly and to notice things

People say that exercising _____ is healthy.

It was not an extremely hot day; it was a _____ hot day.

causing people to lose something or to suffer

involving many people or things; or covering a large area

almost straight up and down; rising or falling very sharply; very high

to bring or come together into a group

to change (something) into a different form or so that it can be used in a different way

to make (something) possible, practical, or easy

to spend (money) on building or improving something

an energy source (such as coal, oil, or natural gas) that is formed in the earth from dead plants or animals

the act of producing or sending out something (such as energy or gas) from a source

the act of eating, drinking or using something

a person who argues for or supports a cause or policy

something that encourages a person to do something or to work harder

an amount (such as an amount of money) that is more than the amount that is needed

the act of throwing something away or getting rid of something

refusing to change your ideas or to stop doing something

very bad in a way that causes fear, shock, or disgust

not showing or suggesting that future success is likely

to hate (someone or something) very much

to move or leap suddenly forward or upward

used to say what someone or something was in the past

very excited and interested

to become worse as time passes

to get or obtain something

to destroy (a building, bridge, etc.)

to suggest a plan or idea

to make changes and repairs to (an old house, building, room, etc.) so that it is back in good condition

famous

in perfect condition: completely clean, fresh, neat

relating to what is real rather than to what is possible or imagined

of or relating to the country and the people who live there instead of the city

having parts that are close together

an important accomplishment or achievement

wooden boards or logs that have been sawed and cut for use

a person who works to protect the natural world from pollution and other threats

the existence of many different kinds of plants and animals in an environment

the act or result of cutting down or burning all the trees in an area

the state or condition of being poor

the state or condition of complete destruction

a powerful or major influence or effect

having or showing great life, activity, and energy

having a quality or characteristic that makes a person or thing different from others

to have a particular position in a group of people or things that are being judged according to quality, ability, size, etc.

your mood or mental state at a particular time

a lot of respect or admiration for someone/something

refers to a place where no person or animal lives

sudden or extreme

to move from one country or place to live or work in another

to change (something) into a different form or so that it can be used in a different way

to move or to cause (something or someone) to move to a different place, position, etc.