What part of speech is the word tension?

The word "tension" 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 a state of mental or emotional strain.

* Example: "There was a lot of tension in the room before the announcement."

* Verb: It can also be used as a verb meaning to make something tight or taut.

* Example: "He tensed his muscles before lifting the heavy weight."

Let me know if you have a specific sentence in mind and I can help determine the part of speech of "tension" in that context.