This is the 3521st most frequent Japanese word.
脚
"脚" means "leg" or "foot" and can also refer to "base" or "support" in certain contexts.
脚 refers to the human leg in this context.
私の脚がつりました。
My leg cramped.
脚 refers to the supporting legs of furniture here.
このテーブルの脚は丈夫です。
The legs of this table are sturdy.
脚 refers to the legs of animals in this usage.