could have sworn

idiom

used to say that one feels definitely sure about something though it appears not to be true
I could have sworn that I left my keys on the counter.

Dictionary Entries Near could have sworn

Cite this Entry

“Could have sworn.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/could%20have%20sworn. Accessed 20 Jun. 2024.

Love words? Need even more definitions?

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