101.

having a very severe effect, or being extremely limiting

stringent

to sleep until later in the morning than you usually do

sleep in

a very unkind or unpleasant person

a piece of work

a person who helps someone else to commit a crime or to do something morally wrong

accomplice

an unexpectedly successful achievement

coup

a language that uses hand, face, and body movements rather than spoken words, used between and with people in the Deaf community

sign language

between average quality and low quality; not good or well

so-so

a statement that says what is going to happen in the future, especially one that is based on what you believe about a particular matter rather than existing facts

prophecy

skilled and experienced

proficient

... people have little confidence and are uncertain about their own abilities or if other people really like them

insecure (feel insecure about)

to communicate effectively

make yourself understood

something that is successful, or that is achieved after a lot of work or effort

accomplishment

a job or piece of work that is often boring or unpleasant but needs to be done regularly

chore

believing that something is very important and giving a lot of time and energy to it

dedicated

great happiness

joy

to feel pleased and excited about something that is going to happen

look forward to sth/to doing sth

careful and using a lot of effort

diligent

to learn how to do something well

master

natural ability to do something well

flair for

very shocked or surprised

stunned

a rope or chain used to tie, especially an animal, to a post or other fixed place, usually so that it can move freely within a small area

tether

(an act of) keeping the truth hidden, especially to get an advantage

deceit