It depends on whether you mean the verb or the noun.
Synonyms for the verb ("He uses...") :
Manipulates, takes advantage of, implements, utilizes, exploits, employs, etc.
Synonyms for the noun ("There are many uses for...") :
Implementations, applications, functions, etc.
Another way to use a person's ideas but not word for word is to paraphrase.
Another word for cancel is Nullify
another word for instance
Another word for math is ...matholagy
Comportment.................. is another word that we can use in place of bearing.
The words see, sue, and use.
you can use the word " Given "
Myself
Negative.
are
use the word job
taking them for granted, belittled