yellow flag
yellow flag Lexical Profile
• noun
A warning sign or indicator of a potential problem, hazard, or area of concern that requires caution, observation, or further investigation.
"The applicant's history of short-term employment was a yellow flag for the hiring manager, prompting deeper questions during the interview."
A physical yellow-colored flag displayed in sports, particularly in auto racing, to indicate a hazard on the track, requiring drivers to slow down and prohibiting overtaking.
"The sudden crash in turn three brought out a yellow flag, forcing all drivers to reduce their speed and safely hold their positions."
A flag historically flown by maritime vessels to indicate the presence of infectious disease and a state of quarantine, or in modern international signaling, to declare a ship is free of disease and requests boarding clearance.
"Historically, port authorities dreaded the sight of a yellow flag, as it signaled that the arriving vessel was isolating due to a medical outbreak."
Word Nuance & Usage
While a 'red flag' indicates an immediate, severe danger or a reason to stop entirely, a 'yellow flag' suggests a moderate warning or area of concern that requires caution and further investigation before proceeding.
• Nearby Words
Word Origin & Etymology
Derived from the literal use of yellow flags as physical warning signals, most notably in early maritime history to denote quarantine, and later in sports such as auto racing to mandate caution. It evolved into a general metaphor for a warning sign in the late 20th century.
Usage Trend
Historical frequency of usage in published text.