noun A group of vessels or vehicles, generally operating in a unified way or traveling together.
A fleet of warships is heading this way.
noun The vehicles commercially owned by a person, company or agency.
She owns a fleet of private medical transport vans.
noun A number of vessels in company, especially war vessels; the vessels commanded by a single officer; also, the collective naval force of a country, etc.
We must invest in our fleet for our national security.
noun Any command of vessels exceeding a squadron in size, or a rear admiral's command, composed of five sail-of-the-line, with any number of smaller vessels.
noun A large, coordinated group of people.
noun Any group of associated items. A street gang.
noun A street gang.
noun The individual waves in corrugated fiberboard.