The meaning of OPTIONAL is involving an option : not compulsory. How to use optional in a sentence.

(Definition of optional from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

If something is optional, you can choose whether or not you do it or have it. A holiday isn't an optional extra. In this stressful, frantic world it's a must. Sex education is a sensitive area for some parents, …

Define optional. optional synonyms, optional pronunciation, optional translation, English dictionary definition of optional. adj. Left to choice; not compulsory or automatic. op′tion·al·ly adv. American …

OPTIONAL definition: left to one's choice; not required or mandatory. See examples of optional used in a sentence.

Definition of optional adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

[Football.]a play in which a back has a choice of either passing or running with the ball. v.t. to acquire or grant an option on: The studio has optioned his latest novel for film adaptation. to provide with …

From Longman Business Dictionary op‧tion‧al /ˈɒpʃənəlˈɑːp-/ adjective if something is optional, you can choose whether or not you have it, do it, or use it You can have a 17-inch monitor as an optional …

If you can choose whether or not to do something, it is optional. Extra credit is always optional; death and taxes are not.

Jackets are required at the restaurant, but ties are optional. Many optional features are available on this car. Registration is optional, not mandatory.