undies

informal plural plural-only

(plural only, informal) underwear, underpants

Japanese Meaning

下着（インフォーマルな表現で「アンダーウェア」や「パンツ」を指す）

She hurriedly changed into fresh undies before heading out to the beach.

彼女は慌てて海に出かける前に新しいパンツに履き替えた。

Sense（1）

(plural only, informal) underwear, underpants

I hope so because I can't wear the suit without the shirt. I went to go look in my dresser. I found it and got out my undies and socks.