A thesaurus is most helpful for students who must find the correct pronunciation for a difficult new word.
need to find multiple definitions for one word.
would like to keep their writing from becoming repetitive.
are looking for multiple forms of one word.

Time rema 01: 55: examine the public service ads this first ad is from 1971 which statement best surmanzes the differences between these two ads? get involved now. pollution hurts all of us. they have different sponsors, they have different appeals they have different purposes they have different target audiences, this second ad is from 2013 @ a 69