Wiktionary
vb. (context idiomatic English) To have auditory hallucinations.
Usage examples of "hear things".
I have almost enough for my passage, but I hear things are growing expensive downriver.
I sent everybody away because I did not trust them to hear things you said.
While I can understand Felaras not wanting every bird-brained flitter-head in the Order to go flying off on tangents because of a little bad news, I rather resent that she feels she needn't tell those of us who are levelheaded until she's ready for us to hear things.
Carialle shuddered as she remembered how the children whispered to each other in supersonic voices that only the computer monitors could pick up that after a while, you'd begin to hear things, and imagine things, and feel things that weren't there.
He didn't look at me, just kept staring out into the dark as if he could hear things I couldn't.