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Definition sub- in British English

sub- prefix

prefix
/sʌb/
1

one small part of a larger thing: used with some nouns

Example

a subset

Synonyms and related words
2

smaller or less important than someone or something: used with some nouns

Example

a sub-post office

Synonyms and related words
3

below or under something: used with some nouns and adjectives

Example

subaqua diving (=diving under water)

Example

substandard (=below average)

Synonyms and related words
3.1

further south: used with some nouns and adjectives

Example

sub-Saharan Africa

Example

the subarctic region

Synonyms and related words
Definition sub- in British English