Is impression a noun or verb?

"Impression" can be both a noun and a verb, depending on how it's used in a sentence.

Noun: A feeling or understanding resulting from an experience.

*Example:* "The movie left a lasting impression on me."

Verb: To mark or stamp something with an image or design.

*Example:* "The seal impressed its image onto the wax."

Let me know if you'd like more examples or clarification!