Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “optional”

See all translations

optional

adjective [not gradable]  /ˈɑp·ʃə·nəl/ us  
not necessary or demanded but possible or available; depending on what you decide to do: I think military service should be completely optional.
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 Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of optional?
Add Cambridge dictionaries to your browser to your website

Definitions of “optional” in other dictionaries

Word of the Day

baby

a very young child, especially one that has not yet begun to walk or talk

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

stackin’ p

March 30, 2015
idiom slang earning a lot of money ‘That’s a very generous present.”Yeah, well, she’s stackin’ p, innit?’

Read More