English Lexicon

Obligate

/ˈɒb.lɪ.ɡeɪt/
verbadjectiveCEFR C1 (Advanced)Top #9400 frequency
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Comprehensive Definitions & Senses

2 senses
As verb
  1. 1

    To bind legally or morally; to compel or constrain someone to do something.

    "The contract will obligate the company to deliver the goods within thirty days."
As adjective
  1. 1

    Restricted to a particular way of life or set of conditions, especially in biology.

    "The tapeworm is an obligate parasite that cannot survive outside a host."

Thesaurus & Semantic Spectrum

Synonyms (3)
Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

Derived from the Latin 'obligatus', past participle of 'obligare', meaning 'to bind, tie up, or obligate'. Entering English in the late Middle Ages, the term originally carried a legal and moral sense of binding someone to a duty, later evolving in biological contexts to describe organisms restricted to a specific mode of life.

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