“Keep an eye on” is used for watching, taking care of, or monitoring someone or something. The exact implication depends on context, from brief supervision to staying informed about changes.
ReviewedEvidence1 sourceSectionPhrases & Idioms
Quick answer
“Keep an eye on” means watch, look after, or monitor someone or something.
Key details
Canonical Formkeep an eye on
Core Meaningto watch, take care of, or stay informed about someone or something
Further guidance
Current Meaning
to watch, take care of, or stay informed about someone or something
History Boundary
This guide establishes present-day form and meaning and does not assert an exact inventor, coinage, or first printed use.
Sources and evidence
Sources are shown with the role they play in this guide. Historical or style-sensitive claims are kept within the evidence boundary described above.
“Keep Tabs On” means to watch someone or something carefully. The phrase usually suggests monitoring or staying informed; context determines whether that monitoring is routine, protective, or intrusive.
To keep your cards close to your chest is to keep your plans or intentions secret. The metaphor is transparently connected with concealing a hand of playing cards, but exact dating is uncertain. The reviewed history source explicitly warns that popular 1860s-origin claims lack citations and treats mid-twentieth-century figurative evidence as the safer documentary floor.
“Keep Your Options Open” means to delay a final choice so that different possibilities remain available. The guide stays with current documented meaning and does not add unsupported origin chronology.
“Turn a Blind Eye” it means to deliberately ignore something you know is wrong or should be addressed.. This guide focuses on the documented modern idiomatic meaning and does not claim an unsupported exact origin date.
A “change of heart” means changing your opinion or feelings about something. The guide establishes the present-day idiom and does not invent an exact coinage or first-use account.
“A slap on the wrist” is an informal idiom for a mild warning or punishment. It is usually figurative and can carry the implication that the consequence was light compared with what was expected or deserved. This guide does not attach an unsupported origin chronology.
“A taste of your own medicine” refers to treating someone in the same unpleasant way that they have treated others. Cambridge records both “dose” and “taste” in the established expression. This guide limits the page to current form and meaning and does not add an unsupported origin story.