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aug·​ment ȯg-ˈment How to pronounce augment (audio)
augmented; augmenting; augments

transitive verb

: to make greater, more numerous, larger, or more intense
The impact of the report was augmented by its timing.
: supplement
She took a second job to augment her income.
grammar : to add an augment to (a verb form) (see augment entry 2)
augmenter noun
or augmentor


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aug·​ment ˈȯg-ˌment How to pronounce augment (audio)
: a vowel prefixed or a lengthening of the initial vowel to mark past time especially in Greek and Sanskrit verbs
Choose the Right Synonym for augment

increase, enlarge, augment, multiply mean to make or become greater.

increase used intransitively implies progressive growth in size, amount, or intensity

his waistline increased with age

; used transitively it may imply simple not necessarily progressive addition.

increased her landholdings

enlarge implies expansion or extension that makes greater in size or capacity.

enlarged the kitchen

augment implies addition to what is already well grown or well developed.

the inheritance augmented his fortune

multiply implies increase in number by natural generation or by indefinite repetition of a process.

with each attempt the problems multiplied

Examples of augment in a Sentence

Verb … a former member of Brunet's team, Jean-Renaud Boisserie of Berkeley, is in the Middle Awash seeking to augment the animal fossil record—particularly that of hippopotamuses. Rex Dalton, Nature, 5 Jan. 2006
These reserve units will soon be augmented by full-time Maritime Safety and Security Teams. The first of these teams was formed on July 3; a dozen more are supposed to be created within the next three years. David Helvarg, Popular Science, September 2002
The sale of its shares in such companies has helped augment its cash reserves from $1.7 billion to $2 billion. Call it a rainy-day fund—something that other dot-coms never had. But the move also suggests that even Yahoo has lost faith in the once boundless promise of Internet companies. Brad Stone, Newsweek, 19 Mar. 2001
The money augmented his fortune. Heavy rains augmented the water supply.
Recent Examples on the Web
The government had purchased 38 paintings from Angerstein’s private collection, which were soon augmented by works from other collectors. Anne Wallentine, Smithsonian Magazine, 8 May 2024 The 49ers are the defending NFC champions, and several of those non-playoff teams have augmented their roster through free agency and the draft. Barry Jackson, Miami Herald, 8 May 2024 See all Example Sentences for augment 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'augment.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


Verb and Noun

Middle English, from Anglo-French augmenter, from Late Latin augmentare, from Latin augmentum increase, from augēre to increase — more at eke

First Known Use


14th century, in the meaning defined at transitive sense 1


1671, in the meaning defined above

Time Traveler
The first known use of augment was in the 14th century

Dictionary Entries Near augment

Cite this Entry

“Augment.” Dictionary, Merriam-Webster, Accessed 22 May. 2024.

Kids Definition


: to increase especially in size, amount, or degree
: to add to : supplement


Middle English augmenten "to increase," from early French augmenter (same meaning), derived from Latin augēre "to increase" — related to auction

Medical Definition


transitive verb
: to increase in size, amount, degree, or severity
diabetes mellitus is augmented by hyperthyroidismC. H. Thienes

More from Merriam-Webster on augment

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