optional

US: /ˈɑpʃənəɫ/, /ˈɔpʃənəɫ/

UK: /ˈɒpʃənə‍l/


English - Vietnamese dictionary

optional /'ɔpʃənl/
  • tính từ
    • tuỳ ý, không bắt buộc
    • để cho chọn

Advanced English dictionary

+ adjective
that you can choose to do or have if you want to: Certain courses are compulsory, others are optional. + This model comes with a number of optional extras (= things you can choose to have but which you will have to pay extra for).

Thesaurus dictionary

adj.
voluntary, discretionary or discretional, elective, facultative, free, spontaneous, uncoerced, unforced, non-compulsory, uncompulsory, non-mandatory, unmandatory, non-requisite, unrequisite:
Life insurance is optional for those who have our hospitalization policy.

Collocation

VERBS

be

ADV.

entirely, purely
The extra language classes are entirely optional.


Concise dictionary

'ɑpʃənl /'ɒp-
adj.
+possible but not necessary; left to personal choice

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