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Optional

Noun CEFR C2 Specialized
ˈɒp.ʃə.nəl

Definitions

  1. Something that is not compulsory, especially part of an academic course.
  2. In various programming languages, a kind of variable that is assigned a specific data type but may or may not hold an actual value.
    capitalized, sometimes

Equivalents

21 more languages

Examples

“In functional languages, there is a data type⟳ called the option type⟳, also called the maybe type⟳. Its purpose is to encapsulate a value, which is returned from a function. […] In Java 8, the Optional class has been added to serve⟳ as an option type⟳.”

CEFR level

C2
Mastery
This word is part of the CEFR C2 vocabulary — mastery level.
See all C2 English words →

See also

Optionality optionalization Optionally optionally piloted vehicle optionee optioneering

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