When you hear the phrase "are in the air," it usually means that there's a certain mood or feeling that's pervasive. There are many synonyms for this phrase, like "afoot," "ongoing," or "permeating." These words convey the sense that something important is happening, or that there is an atmosphere of change. Other synonyms might be "in the wind," "taking shape," or "in the works." All of these phrases suggest that there's something stirring and that people can sense it. It could be excitement, anxiety, anticipation, or hope, but whatever it is, it feels palpable and real.