Which prefix means 'with, together'

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Multiple Choice

Which prefix means 'with, together'

Prefixes that mean "with" or "together" come from Latin com-, which in English appears as con- or co- (and sometimes cor-, col-, com- before certain sounds). This prefix signals joint action, union, or accompaniment, as in cooperate, combine, connect, or coexist. That’s why con- or com- is the best choice here: it directly conveys "with" or "together." The other options map to different ideas—contra- or counter- means against; de- implies reversal or removal; deca- means ten. Recognizing the con- / com- form helps you see the sense of collaboration or joining in unfamiliar words.

Prefixes that mean "with" or "together" come from Latin com-, which in English appears as con- or co- (and sometimes cor-, col-, com- before certain sounds). This prefix signals joint action, union, or accompaniment, as in cooperate, combine, connect, or coexist.

That’s why con- or com- is the best choice here: it directly conveys "with" or "together." The other options map to different ideas—contra- or counter- means against; de- implies reversal or removal; deca- means ten. Recognizing the con- / com- form helps you see the sense of collaboration or joining in unfamiliar words.

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