commercial

noun

1. An advertisement in a common media format, usually radio or television.

   “She was in a commercial for breakfast cereal.”

2. A commercial trader, as opposed to an individual speculator.
3. (obsolete)A commercial traveller.

   “I have more than once had to lend a commercial money to pay his fare home; as he had played shell-out and lost the lot.”

   “Five persons went to the house after the milkman was gone, and that there Arab party was safe inside, — three of them was commercials, that I know, because afterwards they came to me.”

4. (slang)A male prostitute.

   “Tom said that homosexuals hate “commercials,” male prostitutes, and if the homosexual was drunk and angry, he might have committed murder.”

   “With the commercials there is no intensity of feeling and no later animosity; there is emotional and sexual fakery, but no prolonged post-sexual bargaining. […] Paradoxically these boys dissociate themselves from the commercials, yet engage in prostitution only when they require the money.”

adj

1. Of or pertaining to commerce.

   “A two minutes' walk brought Warwick--the name he had registered under, and as we shall call him--to the market-house, the central feature of Patesville, from both the commercial and the picturesque points of view.”

2. Designating an airport that serves passenger and/or cargo flights.
3. Designating such an airplane flight.