- 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.
- reservations, restrictions, or excuses: I want that job finished today, and no ifs, ands, or buts.
- in case that, or on condition that
- used to introduce an indirect question. In this sense, if approaches the meaning of whether
- even though
- used to introduce expressions of desire, with only
- used to introduce exclamations of surprise, dismay, etc
- as it would be if; as though
- an uncertainty or doubt
- a condition or stipulation
- intermediate frequency
