(Cockney rhyming slang, Britain, dated, humorous) I should concur; I should say so; I strongly agree (almost always used ironically or sarcastically).

plural of type I error

(statistics) Rejecting the null hypothesis when the null hypothesis is true.

Alternative spelling of I should cocoa

I must leave

A term of asseveration.

A phrase said to introduce advice, i.e. to express what one would do in the interlocutor's situation.

Indicates that the speaker is from England.

Alternative form of I'm thirsty

Alternative form of I'm tired