"Кои" is a word in the Macedonian language that translates to "who" or "which" in English. It is often used in questions to inquire about the identity of a person or the nature of an object. For example, one might ask, "Кои се твоите пријатели?" which means "Who are your friends?" In addition to its use in questions, "кои" can also function as a relative pronoun. This means it can connect clauses by providing additional information about a noun. For instance, in the sentence "Луѓето кои патуваат," it translates to "The people who travel," linking the subject to their action.