Definitions

1. conjunction

used to introduce a condition, hypothesis, or suggestion.

“I’ll go to the party if you come with me.”

2. preposition

used to indicate a condition or a hypothetical situation.

“He’ll be there if he finishes his work on time.”

3. adverb

used to express doubt or uncertainty.

“I’ll be there, if I’m not stuck in traffic.”

4. interjection

expressing doubt or uncertainty.

“If only I had studied harder for this exam!”