One who, or that which, carries or conveys; a messenger.
One who is employed, or makes it his business, to carry goods for others for hire; a porter; a teamster.
That which drives or carries; as: (a) A piece which communicates to an object in a lathe the motion of the face plate; a lathe dog. (b) A spool holder or bobbin holder in a braiding machine. (c) A movable piece in magazine guns which transfers the cartridge to a position from which it can be thrust into the barrel.
A healthy attitude is contagious but don't wait to catch it from others. Be a carrier. Tom Stoppard
If you pick the right people and give them the opportunity to spread their wings and put compensation as a carrier behind it you almost don't have to manage them. Jack Welch
Japan has always regarded the aircraft carrier as one of the most offensive of armaments. Isoroku Yamamoto
I was sure we would never see the adoption of the Euro. Countries giving up their currencies for a common tender was, it seemed to me, completely out of tune with currency being a carrier of people's cultural identity, celebrating national heroes and events, as it had been for hundreds of years. John Naisbitt
Compare sending someone a text message and getting a love letter delivered by carrier pigeon. No contest. Bryan Callen