Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
augmentative is an adjective meaning "increasing or having the power to increase especially in size or amount or degree". It carries 2 recorded senses.
increasing or having the power to increase especially in size or amount or degree
“`up' is an augmentative word in `hurry up'”
intensifying by augmentation and enhancement
Definitions, synonyms and semantic relations for augmentative come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.