sub- prefix - Definition, pictures, pronunciation and usage notes | Oxford Advanced American Dictionary at OxfordLearnersDictionaries.com

Definition of sub- prefix from the Oxford Advanced American Dictionary

sub-

prefix

NAmE//sʌb//

1(in nouns and adjectives) below; less than subfreezing temperatures a subtropical (= almost tropical) climate substandard

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2(in nouns and adjectives) under subway submarine

3(in verbs and nouns) a smaller part of something subdivide subset

See sub- in the Oxford Advanced Learner's Dictionary

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