Definitions
1.VerbTo increase; to make larger or supplement."The money from renting out a spare room can augment a salary."
2.VerbTo grow; to increase; to become greater.
3.VerbTo slow the tempo or meter, e.g. for a dramatic or stately passage.
4.VerbTo increase an interval, especially the largest interval in a triad, by a half step (chromatic semitone).
5.VerbTo add an augment to.
6.NounA grammatical prefix
In some languages, a prefix *é- (अ- (a-) in Sanskrit, ἐ- (e-) in Greek) indicating a past tense of a verb."The augment is found in Greek, Indo-Iranian, Armenian and Phrygian."
7.NounIn some languages, a prefix *é- (अ- (a-) in Sanskrit, ἐ- (e-) in Greek) indicating a past tense of a verb."The augment is found in Greek, Indo-Iranian, Armenian and Phrygian."
8.NounEspecially Old Irish, a preverb, usually ro-, used to give a verb a resultative or potential meaning.
9.NounIn some languages, an additional vowel prepended to the noun prefix.
10.NounAn increase.