what if
noun(what-if)
a suppositional question
what if
pronoun(what-if)
—used as an interrogative expressing inquiry about the identity, nature, or value of an object or matter
what if
pronoun(what-if)
—often used to ask for repetition of an utterance or part of an utterance not properly heard or understood
what if
pronoun(what-if)
who —used as an interrogative expressing inquiry about the identity of a person