What part of speech is weight?

"Weight" can be several parts of speech depending on how it's used in a sentence:

* Noun: This is the most common usage. It refers to the force exerted on an object due to gravity.

* Example: "The weight of the box was too heavy to lift."

* Verb: This is less common but can mean to assign importance or significance to something.

* Example: "The coach weighted the player's performance heavily in his decision."

So, without context, it's impossible to say definitively which part of speech "weight" is. You need to look at the sentence to determine its role.