Definition of sub- in English:

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sub-

Pronunciation: /səb/

prefix

1At, to, or from a lower level or position: subalpine sub-basement
1.1Lower in rank: subdeacon
1.2Of a smaller size; of a subordinate nature: subculture
2Somewhat; nearly; more or less: subantarctic
3Denoting a later or secondary action of the same kind: sublet subdivision subsequent
4Denoting support: subvention
5 Chemistry In names of compounds containing a relatively small proportion of a component: suboxide

Usage

Sub- is also found assimilated in the following forms: suc- before c (success); suf- before f (suffice); sug- before g (suggestion); sup- before p (supplicate); sur- before r (surreptitious); sus- before c (susceptible), p (suspect), t (sustain).

Origin

From Latin sub 'under, close to'.

For editors and proofreaders

Syllabification: sub-

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