Both maybe and perhaps serve as adverbs to denote the likelihood of an event or the truth of a statement without certainty. Maybe is the go-to choice for everyday, informal speech, while perhaps carries a slightly more formal tone and is often preferred in written content., When someone asks if you want to do something and you say "Perhaps" — you haven't committed. It's another way of saying "I don't know" or "It's possible. Who knows?" People use perhaps when talking about things they aren't sure about, or things they don't want to answer in a decisive way., You use perhaps to express uncertainty, for example, when you do not know that something is definitely true, or when you are mentioning something that may possibly happen in the future in the way you describe., Perhaps definition: maybe; possibly.. See examples of PERHAPS used in a sentence., perhaps - by chance; "perhaps she will call tomorrow"; "we may possibly run into them at the concert"; "it may peradventure be thought that there never was such a time", Synonyms for PERHAPS: maybe, possibly, probably, surely, conceivably, sure, certainly, mayhap, likely, perchance.