determiner , n. , pronoun
1) to make ~ of smt.
2) ~ of (we did not believe ~ of what we heard; he isn't ~ of an artist)
3) ~ to + inf. (she has ~ to say; we have ~ to learn)
4) ( misc. ) ~ as we want to help
USAGE NOTE: The use of the preposition of is necessary when a pronoun follows -- we did not believe ~ of what we heard. When a noun follows, the use of of the limits the meaning -- ~ sorrow is caused by drug abuse; ~ of the sorrow that is caused by drug abuse could be avoided.