Hear tell is a phrase commonly used to indicate that one has heard something from someone else, often used as a way to convey unverified information or gossip. There are several synonyms for this phrase, including "I heard on the grapevine," "I was informed," "I understand," and "I was told." Other expressions that express the same idea include "word on the street," "rumor has it," "buzz is going around," and "according to sources." It is important to note that these phrases can imply that the information shared may not be 100% accurate, so one should always fact-check information before sharing it with others.