The cat's ear is a genus and species of plant.

I need to buy some ear toilets.

She collects antique ear-trumpets.

She used an ear-trumpet to hear better.

That song is such an ear-worm, it's been stuck in my head all day.

I can't get these ear-worms out of my head.

I can't get rid of these ear worms!

That song is such an ear worm, it's been stuck in my head all day.

I need to replace my ear speaker on my phone.

The fire alarm rang ear-piercingly loud.