(あし)

あし
noun
foot, leg
body-part
1. foot
The lower part of the leg below the ankle.
(あし)(いた)
My foot hurts.
(あし)(あら)います
I wash my feet.
My shoes are small, so my feet hurt.
What size are your feet (in centimeters)?
I walked all day, so my feet are very tired. I don't want to walk anymore today.
2. leg
The entire lower limb from hip to foot.
(あし)(なが)
To have long legs.
(あし)(はや)です
You're fast (on your feet).
(あし)(はや) = fast runner
Please don't cross your legs.
I'm slow, so I can't keep up with everyone.
He has long legs, like a model. He runs fast too and is good at sports.

(あし) covers both "foot" and "leg" in Japanese—there's no separate word for each.

Common expressions

Compounds

Body part parallel

Just as (あし) means both foot and leg, () means both hand and arm.