N2 or N-2 may refer to: Dinitrogen (N₂)
==Arts and media== A model number of the Yamaha AvantGrand piano "N2", a 2011 song by Japanese indie rock band Asian Kung-Fu Generation, on the album Landmark Network 2 (now RTÉ Two), an Irish television station, which used the branding "N2" between 1997-2004 NicoNico, a video sharing website
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).