Pronunciation: (ôg-men'tu-tiv), [key]
1. serving to augment.
2. Gram.pertaining to or productive of a form denoting increased size or intensity. In Spanish the augmentative suffix -ón is added to a word (as silla “chair”) to indicate increased size, as in sillón “armchair.”
Gram.an augmentative element or formation.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.