optional - definition and synonyms


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

    The price includes hotel and mealsentertainment is optional.

    Add 200 grammes of walnuts (optional).

    The history course is optional, but English is compulsory.

    an optional extra (=something that is available, usually for more money):

    Remote central locking comes as an optional extra.

derived word