The phrase "be in wind" typically refers to something that is being publicly discussed or widely known. Fortunately, there are many synonyms one can use to express this concept. Some examples include "be in circulation," "be common knowledge," "be no secret," "be making the rounds," "be on the grapevine," "be widely reported," "be the talk of the town," "be on everybody's lips," and "be in the public eye." Whether you're discussing gossip, news, rumors, or trends, these alternatives all convey the idea that something is circulating or known among many people.