chiefly Brit
a bus used for long-distance or charter work, usu having a single deck
a railway carriage
a large, usu closed, four-wheeled horsedrawn carriage
somebody who instructs or trains a performer, sportsperson, team, etc
a private tutor
[Middle English coche via French from German kutsche, prob from Hungarian kocsi (szekér) wagon from Kocs, village in Hungary]