achieve
To successfully reach a goal or complete something through effort and hard work
If you study consistently every day, you can achieve excellent results in your exams.
ambiguous
Having more than one possible meaning and therefore not clear or certain
The instructions were ambiguous, so the students were not sure whether they should work alone or in groups.
challenge
Something that is difficult and requires effort and determination to deal with or overcome
Learning a new language is a big challenge, but it becomes easier with regular practice.
comfortable
Feeling physically relaxed and free from pain, or making you feel this way
This sofa is so comfortable that I often fall asleep while watching television.
consequence
A result or effect of an action or situation, often a negative one
One consequence of not sleeping enough is that it becomes very hard to concentrate in class the next day.
curious
Wanting to know or learn about something; interested and eager to find out more
The curious student asked the teacher many questions about how airplanes are able to fly.
disappointed
Feeling sad or unhappy because something was not as good as expected or did not happen
He was very disappointed when he found out he did not get the job he had applied for.
efficient
Working well and producing good results without wasting time, money, or energy
Using a dishwasher is more efficient than washing all the dishes by hand when you have a large family.
environment
The natural world, including land, water, and air, or the conditions and surroundings in which people live or work
We should all try to protect the environment by using less plastic and recycling more.
generous
Willing to give money, time, or help more than is expected or necessary
It was very generous of him to donate so much money to the local school.
gratitude
The feeling of being thankful and appreciating what someone has done for you
She expressed her gratitude to her teacher by writing a heartfelt thank-you letter at the end of the school year.
happy
Feeling or showing pleasure, joy, or contentment
She was very happy when she received good news about her exam results.
however
Used to introduce a statement that contrasts with or seems to contradict something said before
The restaurant was expensive; however, the food was absolutely delicious.
imagine
To form a picture or idea of something in your mind
Can you imagine living in a city where everyone travels by bicycle instead of by car?
inevitable
Certain to happen and impossible to avoid or prevent
Change is inevitable in life, so it is important to learn how to adapt to new situations.
journey
A trip or travel from one place to another, especially over a long distance
The journey from London to Paris by train takes about two and a half hours.
meticulous
Giving very careful attention to every small detail to make sure everything is correct
The meticulous student checked every answer three times before handing in her test paper.
neighbor
A person who lives very close to you, usually next door or on the same street
My neighbor helped me carry the heavy boxes when I moved into my new apartment.
opportunity
A situation or time that makes it possible for you to do something you want to do
Living abroad gave her a great opportunity to improve her English and learn about a new culture.
particularly
Especially or more than usual; to a greater degree than others
I enjoyed the whole trip, but I particularly loved visiting the old temples in Kyoto.
perseverance
The quality of continuing to try to do something even when it is difficult
Thanks to her perseverance, she passed the difficult exam after studying hard for several months.
possibility
A chance that something might happen or be true
There is a possibility that school will be cancelled tomorrow because of the storm.
relationship
The way in which two or more people or things are connected, or the way they feel and behave toward each other
A good relationship between teachers and students helps create a positive learning environment.
reluctant
Not willing to do something and therefore slow to do it
He was reluctant to ask for help because he did not want to seem like he did not understand.
schedule
A plan that lists events, tasks, or activities and the times when they will happen
According to my schedule, I have a meeting with my manager at three o'clock this afternoon.
significant
Important, large, or noticeable enough to have an effect or to be worth paying attention to
There has been a significant improvement in her English speaking skills over the past six months.
suggest
To mention an idea or plan for someone else to consider
The teacher suggested that students read at least one English article every day to improve their vocabulary.
though
Used to introduce a fact or idea that makes the main statement seem surprising or unexpected; despite the fact that
She went to work though she was feeling very tired.
various
Several different kinds of things or people
The library offers various activities for children, such as storytelling, drawing, and music classes.
weather
The conditions outside at a particular time, such as rain, sunshine, wind, or temperature
The weather in the summer is usually hot and humid in this part of the country.