to have need of; depend upon; want to impose as a necessity; make necessary: this work requires precision - (also intr)
to make a formal request (for); insist upon or demand, esp as an obligation to call upon or oblige (a person) authoritatively; order or command: to require people to account for their actions
WordReference Random House Learner's Dictionary of American English © 2026
re•quire /rɪˈkwaɪr/USA pronunciation
v., -quired, -quir•ing.
WordReference Random House Unabridged Dictionary of American English © 2026- to have need of;
need:[~ + object]He requires medical care. - to order (someone) to do something;
demand, esp. with authority: [~ + object + to + verb]The judge required the witness to testify.[~ + that clause]The judge required that the witness testify.[no object]to do as the law requires. - to make necessary:[~ + object]The work required great patience.
- to place (someone) under an obligation to do something:[not: be + ~-ing* ~ + object + to + verb]You are required to answer all questions.
re•quire
(ri kwīər′),USA pronunciation v., -quired, -quir•ing.
v.t.
v.i.
re•quir′a•ble, adj.
re•quir′er, n.
v.t.
- to have need of;
need:He requires medical care. - to call on authoritatively;
order or enjoin to do something:to require an agent to account for money spent. - to ask for authoritatively or imperatively;
demand. - to impose need or occasion for;
make necessary or indispensable:The work required infinite patience. - to call for or exact as obligatory;
ordain:The law requires annual income-tax returns. - to place under an obligation or necessity:The situation requires me to take immediate action.
- British Terms[Chiefly Brit.]to desire;
wish to have:Will you require tea at four o'clock?
v.i.
- to demand;
impose obligation:to do as the law requires.
- Latin requīrere, equivalent. to re- re- + -quīrere, combining form of quaerere to seek, search for (compare quest)
- Middle English requiren 1300–50
re•quir′er, n.
- 1.See corresponding entry in Unabridged See lack.
- 3.See corresponding entry in Unabridged See demand.
- 6.See corresponding entry in Unabridged obligate, necessitate.
- 3.See corresponding entry in Unabridged forgo.
Collins Concise English Dictionary © HarperCollins Publishers::
'required' also found in these entries (note: many are not synonyms or translations):
Automat
- Bacon
- British thermal unit
- ability
- able
- accelerate
- access time
- accredit
- act
- actual cost
- adopt
- analogy test
- annual report
- approximation
- ariel
- arm
- artist
- away
- bad
- bagful
- bail
- balanced rudder
- bandit
- bank statement
- basal
- basal metabolism
- batch
- battery
- beadhouse
- bed check
- beta stock
- bill of quantities
- binding energy
- biochemical oxygen demand
- blood bank
- bobbin
- book list
- breath
- breathing
- build up
- burdened
- bursting strength
- business
- buy-in
- calorie
- canasta
- category
- cater
- certificate of origin
- certify