What is the meaning of Avoir?

to have; to own; to possess; to get

to have; to experience or suffer from a state or condition

to have (an age)

used to form the compound tenses of most verbs, such as the perfect and pluperfect.

to have (to), must [with à (+ infinitive)]

(chiefly in se faire avoir) to have (to trick; to con)

asset, possession

to have

to have (verb used to form the perfect tense)

to have

to have (verb used to form the perfect tense)

to exist (there is/there are)

possession; good

Source: wiktionary.org