Hello, you have come here looking for the meaning of the word flag. In DICTIOUS you will not only get to know all the dictionary meanings for the word flag, but we will also tell you about its etymology, its characteristics and you will know how to say flag in singular and plural. Everything you need to know about the word flag you have here. The definition of the word flag will help you to be more precise and correct when speaking or writing your texts. Knowing the definition offlag, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
An exact representation of a flag (for example: a digital one used in websites).
(nautical) A flag flown by a ship to show the presence on board of the admiral; the admiral himself, or his flagship.
(nautical, often used attributively) A signal flag.
The use of a flag, especially to indicate the start of a race or other event.
(computer science) 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.
(computer science) In a command line interface, a command parameter requesting optional behavior or otherwise modifying the action of the command being invoked.
2021, Angel Sola Orbaiceta, Hardcore Programming for Mechanical Engineers, pages 19–2:
This will be used as a help message if the user passes in the --help flag, like so: […]
(aviation) A mechanical indicator that pops up to draw the pilot's attention to a problem or malfunction.
1966, Barry J. Schiff, All about Flying: An Introduction to the World of Flying, page 72:
I was shooting an IFR approach down the San Francisco slot, when all of a sudden the ILS flag popped up.
1980, Paul Garrison, Flying VFR in marginal weather, page 139:
[…] and then the OFF flag popped up and the needle went dead.
(geometry) A sequence of faces of a given polytope, one of each dimension up to that of the polytope (formally, though in practice not always explicitly, including the null face and the polytope itself), such that each face in the sequence is part of the next-higher dimension face.
1994, John Ratcliffe, Foundations of Hyperbolic Manifolds, page 230:
A flag of P is a sequence (F0, F1, ..., Fm) of faces of P such that dim Fi = i for each i and Fi is a side of Fi+1 for each i < m.[…]A regular polytope in X is a polytope P in X whose group of symmetries in <P> acts transitively on its flags.
2002, Peter McMullen, Egon Schulte, Abstract Regular Polytopes, Encyclopedia of Mathematics and Its Applications 92, page 31:
We call P (combinatorially) regular if its automorphism group Γ(P) is transitive on its flags.
2006, Peter McMullen, Egon Schulte, “Regular and Chiral Polytopes in Low Dimensions”, in Harold Scott Macdonald Coxeter, Chandler Davis, Erich W. Ellers, editors, The Coxeter Legacy: Reflections and Projections, page 91:
Roughly speaking, chiral polytopes have half as many possible automorphisms as have regular polytopes. More technically, the n-polytope P is chiral if it has two orbits of flags under its group Γ(P), with adjacent flags in different orbits.
(mathematics,linear algebra) A sequence of subspaces of a vector space, beginning with the null space and ending with the vector space itself, such that each member of the sequence (until the last) is a proper subspace of the next.
(television) A dark piece of material that can be mounted on a stand to block or shape the light.
1999, Des Lyver, Graham Swainson, Basics of Video Lighting, page 103:
At the other extreme, with limitless budgets all they have to do is dream up amazing lighting rigs to be constructed and operated by the huge team of gaffers and sparks, with their generators, discharge lights, flags, gobos and brutes.
2012, John Jackman, Lighting for Digital Video and Television, page 86:
Flags and other cutters allow the DP or gaffer to throw large controlled shadows on parts of the scene.
The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.
flag (third-person singular simple presentflags, present participleflagging, simple past and past participleflagged)
To furnish or deck out with flags.
To mark with a flag, especially to indicate the importance of something.
2011 January 8, Chris Bevan, “Arsenal 1 - 1 Leeds”, in BBC:
Walcott was, briefly, awarded a penalty when he was upended in the box but referee Phil Dowd reversed his decision because Bendtner had been flagged offside.
(often with down) To signal to, especially to stop a passing vehicle etc.
Please flag down a taxi for me.
To convey (a message) by means of flag signals.
to flag an order to troops or vessels at a distance
(often with up) To note, mark or point out for attention.
I've flagged up the need for further investigation into this.
Users of the Internet forum can flag others' posts as inappropriate.
Mark Dvoretsky (2014) For Friends & Colleagues, volume 1, →ISBN: “Indeed, I usually spent an hour to an hour and a half on my game, never found myself in time pressure, never once flagged in my entire life, except in blitz games, of course.”
During estrus, most bitches will flirt with males by backing up to them, flagging their tails in the males’ faces, urinating frequently, and generally acting seductive.
2011 January 3, Pete Haswell, “Life and Behaviour of Wolves”, in Wolf Print:
She will avert her tail to the side (flagging), standing still when the male mounts.
Of uncertain origin, perhaps from North Germanic; compare Danishflæg(“yellow iris”). Or, possibly from sense 1, referring to its motion in the wind. Compare also Dutchvlag.
[T]he ebbed man, ne'er loved till ne'er worth love, Comes deared by being lacked. This common body, Like to a vagabond flag upon the stream, Goes to and back, lackeying the varying tide, To rot itself with motion.