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English definition of “that will do”

that will do

said to mean that you do not want any more of something: "More peas?" "No, that'll do, thank you." That will do, Charles. I don't want to see any more of that kind of behaviour.Enough Grammar:It, this and that in paragraphsWe use it, this and that to introduce further information about a topic already mentioned. However, the words have different uses.See moreGrammar:ThatThat is a very common word in both writing and speaking. We use it as a determiner, a demonstrative pronoun and a relative pronoun. We also use it as a conjunction to introduce that-clauses.See moreGrammar:That: determiner and pronounWe use that most commonly to point to a thing or person. We use it with singular nouns. The thing or person is often distant from the speaker and sometimes closer to the listener, or not visible to either the speaker or listener:See moreGrammar:That: relative pronounWe use that to introduce defining relative clauses. We can use that instead of who, whom or which to refer to people, animals and things. That is more informal than who or which:See moreGrammar:That-clausesWe also use that to introduce that-clauses after some verbs, adjectives and nouns:See moreGrammar:That: other usesSee moreGrammar:This, that, these, thoseThis, that, these and those are demonstratives. We use this, that, these and those to point to people and things. This and that are singular. These and those are plural. We use them as determiners and pronouns.See moreGrammar:This, that, these, those as determinersSee moreGrammar:This, that, these, those as pronounsSee moreGrammar:This and these, that and those: usesSee moreGrammar:Substitution with that, thoseIn formal contexts, we can use that and those as substitutes meaning ‘the one(s)’:See more
(Definition of that will do from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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