noun
definition
An uncertainty, possibility, condition, doubt etc.
conjunction
definition
Supposing that, assuming that, in the circumstances that; used to introduce a condition or choice.
example
If it rains, I shall get wet.
definition
In the event that a statement is true (a programming statement that acts in a similar manner).
example
If A, then B, else C.
definition
Supposing that; used with past or past perfect subjunctive indicating that the condition is closed.
example
I would be unhappy if you had not talked with me yesterday.
definition
Supposing that; given that; supposing it is the case that.
example
If that's true, we had better get moving!
definition
Although; used to introduce a concession.
example
He was a great friend, if a little stingy at the bar.
definition
(sometimes proscribed) Whether; used to introduce a noun clause, an indirect question, that functions as the direct object of certain verbs.
example
I don't know if I want to go or not.
definition
(usually hyperbolic) Even if; even in the circumstances that.
definition
Introducing a relevance conditional.
example
I have leftover cake if you want some.
Examples of if in a Sentence
I'll take care of the others if you want to watch the kids.
What if we thought differently?
It's all very well if you're single.
I'll use my own hat, if you please.
If we keep cool and moist, and meet with no accidents, we often live for five years.
If anything more is wanted I'll send after you.
If God thought it was wrong, nothing we could have done would have been successful.
If a man was obliged to go from one city to another, he often rode on horseback.
Let the son marry the daughter, if both agree, and give them the treasure as a wedding portion.
If you hadn't happened to find the piglet, Eureka would surely have been executed.
As if you could kill time without injuring eternity.
We can stop right here if you want, Carmen.
It seemed as if no one saw that coming because, frankly, no one could conceive of it happening.
If I should attempt to tell how I have desired to spend my life in years past, it would probably surprise those of my readers who are somewhat acquainted with its actual history; it would certainly astonish those who know nothing about it.
If you don't open this door I'm going to kick it open.
Call me if there's any change.
Now if that's all...
We must cease raving if we are sons of our Fatherland!
He didn't care if she got cold.
A touch of humor lurked in Señor Medena's dark eyes, but he continued as if he didn't notice.
If I had an even faster computer than I have today, I could come up with really interesting questions to ask it.
I was quite ill afterward, and I wonder if retribution also overtook the turkey.
I don't know if he's angry or not.
The greater part of what my neighbors call good I believe in my soul to be bad, and if I repent of anything, it is very likely to be my good behavior.
At this point, if you follow my reasoning, we have established at least the possibility of a bright future.
It was very difficult to walk over, the ties were wide apart and so narrow that one felt as if one were walking on knives.
Prince Andrew shook himself as if waking up, and his face assumed the look it had had in Anna Pavlovna's drawing room.
Well, if my cooking is that bad...
You do realize that if it's a girl, we're going to be unevenly matched.
The shah sat silent for a while, as if in thought.
One may almost doubt if the wisest man has learned anything of absolute value by living.
As for reaching the top of the earth, I have never heard that it is possible to do that, and if you succeeded in getting there you would probably fall off.
It's almost as if it is a lifetime goal.
The main point, however, was that they flew, and flew swiftly, if a bit unevenly, toward the rock for which they had headed.
She went quickly over uninteresting details, and never nagged me with questions to see if I remembered the day-before-yesterday's lesson.
You may do that tomorrow if you wish.
It is a sad story, but if you will try to restrain your tears I will tell you about it.
As they had no wings the strangers could not fly away, and if they jumped down from such a height they would surely be killed.
If you can prove I'm guilty, I'll be willing to die nine times, but a mind's eye is no proof, because the Woggle-Bug has no mind to see with.
But don't try to make out I'm too innocent to eat a fat piglet if I could do it and not be found out.
If you had looked ahead fifty years to 1240, you wouldn't have anticipated much change.
What if the Smolensk people have offahd to waise militia for the Empewah?
Of course, if you prefer, we can wait until you come home from work and make it a fun family event.
If he hadn't hid it from her all this time, it wouldn't be such a shock.
If he was guilty, he probably deserved it, but is family didn't.
If there are, they are liable to be glass oats!
He won't need to destroy ME, for if I don't get something to eat pretty soon I shall starve to death, and so save him the trouble.
If he reports that our losses were great, it is not true; perhaps about four thousand, not more, and not even that; but even were they ten thousand, that's war!
I can neither punish him if he does wrong nor reward him if he does right.
Whenever anything delighted or interested me she talked it over with me just as if she were a little girl herself.