* Verb: This is the most common use. It means to determine the weight of something, or to consider something carefully.
* Example: "I need to weigh the package."
* Example: "I'm weighing my options before making a decision."
* Noun: This is less common, but it can be used to refer to the act of weighing.
* Example: "The weigh of the decision was heavy on her shoulders."
* Adjective: This is also less common, but it can mean heavy or significant.
* Example: "The weigh of the evidence against him was overwhelming."
So, the part of speech of "weigh" depends on the context.