a helping verb, an auxiliary verb (verb that, having lost its literal meaning, joins itself to a certain form of another verb, for example to a past participle, to show a grammatical feature such as tense, voice, aspect, etc. In French, avoir and être are tense auxiliaries)
the state of advancing, progress; a projection (i.e. from a building); a promotion, an advancement in status; clipping of avancement d'hoirie; an early inheritance