require

Require is defined as to need or demand.

(verb)

An example of to require is someone needing sleep when they are very tired.

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See require in Webster's New World College Dictionary

transitive verb required, requiring

  1. to ask or insist upon, as by right or authority; demand: to require obedience
  2. to order; command: to require someone to be present
  3. to be in need of; need: to require help
  4. to call for as necessary or appropriate: work that requires a steady hand
  5. to demand by virtue of a law, regulation, etc.: what is required by law
  6. Archaic to ask for; request

Origin: ME requiren < base of OFr requerre < VL *requaerere, for L requirere < re-, again + quaerere, to ask

intransitive verb

Now Rare to make a demand

See require in American Heritage Dictionary 4

transitive verb re·quired, re·quir·ing, re·quires
  1. To have as a requisite; need: Most plants require sunlight.
  2. To call for as obligatory or appropriate; demand. See Synonyms at demand.
  3. To impose an obligation on; compel: Students are required to attend classes.

Origin:

Origin: Middle English requiren

Origin: , from Old French requerre

Origin: , from Vulgar Latin *requaerere

Origin: , alteration (influenced by quaerere, to seek)

Origin: of Latin requīrere

Origin: : re-, re-

Origin: + quaerere, to seek

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Related Forms:

  • re·quirˈa·ble adjective
  • re·quirˈer noun

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