flag up

British

verb

(tr; adverb) to bring (something) to someone's attention; point out

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

San Ciro's restaurant in Edinburgh has a Scotland flag up with the words 'Napoli.

From BBC • Aug. 7, 2025

Teams can flag up to 30 plays for review per game through a league portal — including isolated calls or themes spanning multiple games.

From Los Angeles Times • Aug. 3, 2025

Casting doubt on Guardiola and Manchester City is a hazardous business given their unprecedented history of Premier League success, but there is no escaping that these losses, and the manner of them, flag up trouble.

From BBC • Nov. 9, 2024

The team can organise a mental health assessment, send out a crisis team and flag up help available in the local area.

From BBC • Aug. 26, 2024

Charlie put Lester on his shoulder to plant the flag up in its holder.

From "The Teacher’s Funeral" by Richard Peck

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023