Meaning

• A wheeled vehicle, generally drawn by horse power.

• A passenger car, either drawn by a locomotive or part of a multiple unit.

• (originally Oxford University slang) A trainer or instructor.

• A single-decked long-distance, or privately hired, bus.

• The forward part of the cabin space under the poop deck of a sailing ship; the fore-cabin under the quarter deck.

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

  "John flew coach to Vienna, but first-class back home."

Meaning

• To train.

• To instruct; to train.

  "She has coached many opera stars."

• To study under a tutor.

• To travel in a coach (sometimes coach it).

• To convey in a coach.