A single English word often has more than one meaning. Most frequently these meanings are related. Walk, for example, can refer to the action of moving by foot or the path where you are treading along.
There are a few exceptions.
Lean. The meanings for this word vary enough that my dictionary gives it two entries. What does it tell you if you saw a lean man lean against a wall?
Personally, I’d want to know more.
Can you find the two meanings of a single word in this photo?
Check out that eyeball in the distance.