Definition of "coach"

A wheeled vehicle, generally drawn by horse power.  examples

(rail transport, UK, Australia) A passenger car, either drawn by a locomotive or part of a multiple unit.  examples

(originally Oxford University slang) A trainer or instructor.

(Britain, Australia) A long-distance, or privately hired, bus.  examples

(nautical) The forward part of the cabin space under the poop deck of a sailing ship; the fore-cabin under the quarter deck.  quotations  examples

(chiefly US) The part of a commercial passenger airplane or train reserved for those paying the lower standard fares; the economy section.  examples

(chiefly US) The lower-fare service whose passengers sit in this part of the airplane or train; economy class.  examples

(intransitive, sports) To train.  examples

(transitive) To instruct; to train.  examples

(intransitive) To study under a tutor.  examples

(intransitive) To travel in a coach (sometimes coach it).  quotations  examples

(transitive) To convey in a coach.  quotations  examples

(chiefly US) Via the part of a commercial passenger airplane or train reserved for those paying the lower standard fares; via the economy section.  examples