What part of speech is the word stick?

"Stick" can be several parts of speech depending on how it's used:

* Noun: A thin piece of wood (e.g., "He used a stick to stir the fire.")

* Verb: To attach or become attached (e.g., "Stick the stamp on the envelope.")

* Adjective: Stubborn or unyielding (e.g., "He's being stick about it.")

To determine the part of speech, you need to look at how the word is used in a sentence.