What part of speech is excommunicate?

Excommunicate can be categorized as a noun and a verb.

Parts of speech

1. excommunicate is a verb, present, 1st person singular of excommunicate (infinitive).
2. excommunicate is a verb (infinitive).
3. excommunicate is a noun, singular of excommunicates.

Adjective
excommunicate - Excommunicated.
Verb
excommunicate - exclude from a church or a religious community; "The gay priest was excommunicated when he married his partner"
excommunicate - oust or exclude from a group or membership by decree
Noun
excommunicate - A person so excluded.