Word.ws English Dictionary

I'm sure

I'm sure phrase: used other than figuratively or idiomatically: see sure.

Phrase

I'm sure

  1. Used other than figuratively or idiomatically: see sure.
  2. (sarcastic, usually) Used to emphasise an apology, acknowledgement, etc.
    • — Hey, you're standing too close to me.
    • — Huh, sorry I'm sure.
  3. (dated, idiomatic) Used as an interjection to indicate denial or contradiction in response to an assertion or accusation.
    • — You're just using that as an excuse to ditch class and go surfing.
    • — Uh!...I'm sure!...

Questions about I'm sure

What does I'm sure mean?
I'm sure means used other than figuratively or idiomatically: see sure.
What part of speech is I'm sure?
I'm sure is a phrase.

Words near I'm sure in the dictionary

  1. I'm sick
  2. I'm single
  3. I'm sorry
  4. I'm sozzy
  5. I'm straight
  6. I'm sure
  7. I'm telling a lie
  8. I'm telling you
  9. I'm thirsty
  10. I'm tired
  11. I'm twenty years old

Source and license

Adapted from Wiktionary: I'm sure (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Flame, not lame-I'm sure.wav.

Cite this entry: “I'm sure.” Word.ws, https://word.ws/i%27m_sure. Based on Wiktionary, CC BY-SA 4.0.