[awg-men-tey-shuh n]


the act of augmenting; state of being augmented.
that by which anything is augmented.
Music. modification of a theme by increasing the time value of all its notes.
Heraldry. an addition to a coat of arms granted to a person by a sovereign power in recognition of a notable action.

Origin of augmentation

1425–75; late Middle English (< Anglo-French) < Late Latin augmentātiōn- (stem of augmentātiō). See augment, -ation; replacing late Middle English aumentacion < Middle French Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for augmentation

Historical Examples of augmentation

  • They fall by reason of an augmentation of the supply or a diminution of the demand.

  • On the question of the augmentation of the navy he opposed the building of the seventy-fours.

    Albert Gallatin

    John Austin Stevens

  • But this is not an answer; it is rather an augmentation of the argument.

    What I Saw in America

    G. K. Chesterton

  • Published, after correction and augmentation, from a badly corrected copy, 1598.

    William Shakespeare

    John Masefield

  • If it were as they taught, even then it could be no augmentation of the hopelessness of this life.

    The Sign of the Spider

    Bertram Mitford

British Dictionary definitions for augmentation



the act of augmenting or the state of being augmented
the amount by which something is increased
music the presentation of a subject of a fugue, in which the note values are uniformly increasedCompare diminution (def. 2)
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for augmentation

mid-15c., "act of making greater," from Old French augmentacion "increase," from Late Latin augmentationem (nominative augmentatio), noun of action from past participle stem of augmentare (see augment). Meaning "amount by which something is increased" is from 1520s. Musical sense is from 1590s.

Online Etymology Dictionary, © 2010 Douglas Harper