Make a sentence with 'knock out'

to use something for the wrong purpose in a way that is harmful or morally wrong

Make a sentence with 'burn off'

a large, flat area surrounded by seats used for sports or entertainment

to be actively involved in something with other people

to cause someone or something to fail

shouts of encouragement and approval

a person who watches an activity, especially a sports event, without taking part

a man who plays sport, especially one who plays it well

to speak with a very loud voice, often as loud as possible, usually when you want to make yourself heard in noisy situations, or when the person you are talking to is a long way away or cannot hear very well

Make a sentence with 'go for'

someone who admires and supports a person, sport, sports team, etc

a violent person who fights or causes damage in public places