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optionality - 1 dictionary result

op⋅tion⋅al

[op-shuh-nl]
–adjective
1. left to one's choice; not required or mandatory: Formal dress is optional.
2. leaving something to choice.

Origin:
1755–65; option + -al 1


op⋅tion⋅al⋅i⋅ty, noun
op⋅tion⋅al⋅ly, adverb


1. discretional, elective, voluntary.
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