What part of speech is felt?

Felt can be a noun or a verb.

If you are saying "I felt the cactus" then it would be a verb because you can feel some thing. If the Word is a verb it can fill in the blank, "I ______ ."

If you are saying "The felt was as red as my cheeks in December" then felt would be a noun because felt is a person, place, or thing (THING).

"Felt" can also be used as a verb by saying, "Yesterday I felt crushed because of my boyfriend" It would be a verb because you can use it in the blank, "I ______." You can feel emotion and you can feel sadness, anger, and hapieness too.

Felt is past tense of a verb.