American Dictionary

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Definition optional in American English

optional adjective

adjective
/ˈɑpʃən(ə)l/
1

something that is optional is available or possible if you want it, but you do not have to have it or do it

Example

The price includes hotel and meals - entertainment is optional.

Example

Add one cup of walnuts (optional).

Example

The history class is optional, but English is compulsory.

Example

Remote central locking comes as an optional extra.

Synonyms and related words
Definition optional in American English