Adjective

1. Of or pertaining to an admiral, commodore, or general officer.

   Captains park in the second row, flag officers next to the building.

Noun

1. A piece of cloth, often decorated with an emblem, used as a visual signal or symbol.
2. A flag flown by a ship to show the presence on board of the admiral; the admiral himself, or his flagship.
3. A signal flag.
4. The use of a flag, especially to indicate the start of a race or other event.
5. A variable or memory location that stores a true-or-false, yes-or-no value, typically either recording the fact that a certain event has occurred or requesting that a certain optional action take place.
6. In a command line interface, a notation requesting optional behavior or otherwise modifying the action of the command being invoked.
7. an abbreviation for capture the flag.

Verb

1. To mark with a flag, especially to indicate the importance of
2. To signal to, especially to stop a passing vehicle etc.
   • Please flag a taxi down for me.
3. : To signal (an event).
   • The compiler flagged three errors.
4. : To set a program variable to true.
   • Flag the debug option before running the program.

1. To weaken, become feeble.
   • His strength flagged toward the end of the race.

Noun

1. Any of various plants with sword-shaped leaves, especially irises; specifically, Iris pseudacorus.

Noun

1. A slice of turf; a sod.
2. A slab of stone; a flagstone, a flat piece of stone used for paving.

Verb

1. To lay down flagstones.
   • Fred is planning to flag his patio this weekend.