US /ˈʌndərwer/
・UK /ˈʌndəweə(r)/
Because there's the context that you share with your interlocutor – stuff that's known to both of you – like how mice don't wear underwear.
As long as we're talking, stay out of my underwear drawer. I'm a grown man.
stay out of my underwear drawer.
In South American countries, wearing colored underwear will determine your fate for the new year.
Kennedy's underwear.
Kennedy's underwear.
I put on my underwear first.
the amount of detail the filmmakers put into everything in the movie, even the characters' underwear;
even the characters’ underwear;
You're having an exhibition now on male underwear?
- They're underwear. - Yeah.
And then she said, "And are you wearing those underwear again?"
"wearing those underwear again?"
That is so not the opposite of taking somebody's underwear!
A lot of us say "you lost your underwear." - You lost your underwear.
You lost your underwear. Yeah.