A person or object that carries someone or something else.
A carrier pigeon.
A person or company in the business of shipping freight.
A signal such as radio, sound, or light that is modulated to transmit information.
A mobile network operator; wireless carrier.
A certified airline.
That which drives or carries.
A catalyst or other intermediary in a chemical reaction.
A person or other organism that has a genetic trait, mutation or infection liable to cause a disease, but displays no symptoms.
Charge carrier
A liquid or gas used as a medium for another substance.