on one's guard

idiom

: watching for possible danger, threats, problems, etc.
inspectors on their guard for certain violations that are often overlooked

Dictionary Entries Near on one's guard

Cite this Entry

“On one's guard.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20one%27s%20guard. Accessed 25 Dec. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!