1.
a film or television or radio programme that gives facts and information about a subject
2.
a person who flies an aircraft
3.
another word for "rubbish"
4.
a person who believes strongly in political or social change and takes part in activities such as public protests to try to make this happen
5.
alone or without other people
6.
a person who has come to live permanently in a different country from the one they were born in
