optional Definition in Cambridge British English Dictionary
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Definition of "optional" - British English Dictionary

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optionaladjective

uk   /ˈɒp.ʃən.əl/  us   /ˈɑːp-/
B2 If something is optional, you can choose if you want to do it, pay it, buy it, etc.: English is compulsory for all students, but art and music are optional.
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Translations of “optional”
in Korean 선택적인…
in Arabic اِخْتياري…
in Portuguese opcional…
in Catalan opcional…
in Japanese 任意の, 選択の…
in Italian facoltativo…
in Chinese (Traditional) 可選擇的, 非強制的…
in Russian необязательный, факультативный…
in Turkish tercihli, isteğe bağlı, ihtiyari…
in Chinese (Simplified) 可选择的, 非强制的…
in Polish dodatkowy, dobrowolny…
(Definition of optional from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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