\ ˈblak-ˈflag How to pronounce black-flag (audio) \
black-flagged; black-flagging; black-flags

Definition of black-flag

 (Entry 1 of 2)

transitive verb

: to signal (a race-car driver) to go immediately to the pits

black flag


Definition of black flag (Entry 2 of 2)

: a pirate's flag usually bearing a skull and crossbones

Examples of black-flag in a Sentence

Recent Examples on the Web: Noun If a black flag is flying over any of these bases that usually indicates all physical training and strenuous exercise is suspended. Anton L. Delgado, The Arizona Republic, "Retired general: Climate change is a threat to national security, military readiness," 4 Sep. 2020 Davis-Monthan Air Force Base recognized its first black flag day this summer on July 8. Anton L. Delgado, The Arizona Republic, "Retired general: Climate change is a threat to national security, military readiness," 4 Sep. 2020 The triangle is otherwise not common among antifa iconography, which usually features a red and black flag or three arrows. NBC News, "Facebook removes Trump ads for violating 'organized hate' policy," 18 June 2020 The description includes a black flag emoji, which often symbolizes anarchism. oregonlive, "Who is the PNW Youth Liberation Front at the center of recent Portland protests," 3 June 2020 At one point, Canfora waved a black flag at the mass of Guardsmen. Laura Johnston, cleveland, "‘I have great pride in the revolt:’ Kent State University shooting victim Alan Canfora recounts events leading to May 4, 1970," 3 May 2020 Demonstrators honked horns and waved black flags from windows but remained in their cars to comply with public health instructions. Josef Federman, The Christian Science Monitor, "Israelis create new lawful patterns of protest amid pandemic," 30 Apr. 2020 Many of the cars honked and hung black flags out their windows. Aron Heller,, "Israeli protests accuse Netanyahu of imposing a dictatorship," 19 Mar. 2020 Some held black flags, which have become the symbol of their campaign in recent weeks., "Churches mostly empty for Orthodox Easter due to virus rules," 19 Apr. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'black-flag.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of black-flag


1963, in the meaning defined above


1720, in the meaning defined above

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Time Traveler for black-flag

Time Traveler

The first known use of black-flag was in 1720

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Cite this Entry

“Black-flag.” Dictionary, Merriam-Webster, Accessed 28 Sep. 2020.

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