[ if ]
/ ɪf /
in case that; granting or supposing that; on condition that: Sing if you want to. Stay indoors if it rains. I'll go if you do.
even though: an enthusiastic if small audience.
whether: He asked if I knew Spanish.
(used to introduce an exclamatory phrase): If only Dad could see me now!
when or whenever: If it was raining, we had to play inside.
a supposition; uncertain possibility: The future is full of ifs.
a condition, requirement, or stipulation: There are too many ifs in his agreement.
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Idioms for if
ifs, ands, or buts, reservations, restrictions, or excuses: I want that job finished today, and no ifs, ands, or buts.
Origin of if1
First recorded before 900; Middle English, variant of yif, Old English gif, gef; akin to Old Norse ef “if,” Gothic ibai “whether,” Old High German iba “condition, stipulation”
synonym study for if
1, 2. If, provided, providing imply a condition on which something depends. If is general. It may be used to indicate suppositions or hypothetical conditions (often involving doubt or uncertainty): If you like, we can go straight home. If I had known, I wouldn't have gone. If may mean even though: If I am wrong, you are not right. It may mean whenever: If I do not understand, I ask questions. Provided always indicates some stipulation: I will subscribe ten dollars provided ( on the condition ) that you do, too. Provided he goes, we can go along. Providing means the same as provided, that is, just in case some certain thing should happen: We will buy the house, providing ( provided ) we can get a mortgage.
usage note for if
If meaning “whether,” as in I haven't decided if I'll go, is sometimes criticized, but the usage is long established as standard.
Words nearby if
Definition for if (2 of 2)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for if (1 of 2)
/ (ɪf) /
in case that, or on condition thatif you try hard it might work; if he were poor, would you marry him?
used to introduce an indirect question. In this sense, if approaches the meaning of whether
even thoughan attractive if awkward girl
- used to introduce expressions of desire, with onlyif I had only known
- used to introduce exclamations of surprise, dismay, etcif this doesn't top everything!
as if as it would be if; as thoughhe treats me as if I were junior to him
an uncertainty or doubtthe big if is whether our plan will work at all
a condition or stipulationI won't have any ifs or buts
Word Origin for if
Old English gif; related to Old Saxon ef if, Old High German iba whether, if
British Dictionary definitions for if (2 of 2)
/ electronics /
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for if
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Idioms and Phrases with if
In addition to the idioms beginning with if
- if anything
- if at first you don't succeed, try, try again
- if it ain't broke don't fix it
- if only
- if the mountain won't come to Muhammad, Muhammad must go to the mountain
- if the shoe fits, wear it
- if wishes were horses
- if worst comes to worst
- if you can't beat 'em, join 'em
- if you can't stand the heat, get out of the kitchen
- as if
- damned if I do, damned if I don't
- make as if to
- no ifs or buts
- nothing if not
- (if) push comes to shove
- what if
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.