ul‧ti‧ma‧tum /ˌʌltəˈmeɪtəm, ˌʌltɪˈmeɪtəm/ noun (plural ultimatums or ultimata /-tə/) [countable]
[Date: 1700-1800; Language: Modern Latin; Origin: Late Latin ultimatus; ⇒ ultimate¹]
a threat saying that if someone does not do what you want by a particular time, you will do something to punish them:
The club gave him an ultimatum - either he apologized, or he would be expelled from the team.
The army issued an ultimatum for all weapons in the city to be surrendered by October 26th.

[TahlilGaran] Dictionary of Contemporary English ▲

ultimatum
noun
VERB + ULTIMATUM deliver, give sb, issue, present (sb with), send The government denied that it had presented the union with an ultimatum.
get, receive | comply with | ignore | withdraw
ULTIMATUM + VERB demand sth

[TahlilGaran] Collocations Dictionary ▲

ultimatum

give somebody an ultimatum
My boss gave me an ultimatum: get better results or find another job.
issue/deliver an ultimatum (=officially give someone an ultimatum)
The authorities issued an ultimatum to the students to end their protest or face arrest.
present somebody with an ultimatum
Iraq was presented with an ultimatum by the UN to cease the invasion of Kuwait.
receive an ultimatum
We received an ultimatum from the army demanding our surrender.
the terms of an ultimatum
The terms of the ultimatum required them to withdraw by noon.

[TahlilGaran] Collocations Dictionary ▲