Cases of word usage

1) having knowledge of, conscious of, something (aware)

2) a person who claims to have more skill, knowledge or ability then he or she really has (charlatan)

3) (of a person) having the necessary ability, power, authority, skill, knowledge etc (competent)

4) a person with good judgement on matters in which knowledge or artistic taste is needed (connoisseur)

5) having a good knowledge of (conversant)

6) to find out (something) (by accident); get knowledge of (something existing but not yet known) (discover)

7) a book or set of books giving information about every branch of knowledge or about one subject (encyclopedia)

8) to give more knowledge to a person (about something); free a person from ignorance, misunderstanding or false beliefs (enlighten)

9) the act of examining or being examined; a (usually written) test of knowledge or ability (examination)

10) to look at (a person, thing) carefully in order to learn something; to put questions to (a person) in order to test knowledge or get information (examine)