carrier

someone whose employment involves carrying something; "the bonds were transmitted by carrier"

a self-propelled wheeled vehicle designed specifically to carry something; "refrigerated carriers have revolutionized the grocery business"

a large warship that carries planes and has a long flat deck for takeoffs and landings

an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction

a person or firm in the business of transporting people or goods or messages

a radio wave that can be modulated in order to transmit a signal

a man who delivers the mail

a boy who delivers newspapers

(medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others

a rack attached to a vehicle; for carrying luggage or skis or the like

(genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring