I overheard a very funny conversation on the bus this morning.
I'm sure I didn't say that! You must have misheard (me).
3. keep your ear to the ground
Peter'll know; he always keeps an ear to the ground.
I couldn't catch what the announcer said, with all the other noise going on.
He was eavesdropping on our conversation.
6. listen in on sth/sb
I wish Dad would stop listening in on my phone conversations.
7. strain your ears
I was straining my ears to hear what they were saying.
8. in/within earshot
8. out of earshot
I don't think you should say anything while the boss is still in/within earshot.
Wait till she's out of earshot before you say anything.
9. hang on someone’s every word
Her audience were hanging on her every word.
10. ears prick up
My ears pricked up because I heard them mention Jonathan.
11. listen out for
Would you listen out for the phone while I'm in the garden?
12. must be hearing things
He's offered to wash the dishes - I must be hearing things.
13. not hear the end/last of sth
We'll never hear the last of it if they win that competition.
14.hear sb out
At least hear me out before making up your mind.
15. be all ears
I'm all ears - tell us what they had to say.