who're
n. B1 Intermediate US //ˈhɔɹ// UK //hˈɔː// whore
n. a short way of saying 'who are'. You use this in casual talking or writing when asking about a group of people.
n. a contraction of the relative or interrogative pronoun 'who' and the plural or second-person singular present indicative of 'be' (are). Used primarily in informal speech and writing to represent spoken elision.
Who're those people standing by the door?
I need to find out who're the main organizers for the charity event this weekend.
The manager asked for a list of the employees who're planning to attend the conference so she could finalize the travel arrangements.
Usage
Used in informal contexts; the apostrophe replaces the 'a' in 'are'.