Is Auxiliary an Adjective?

AUXILIARY (adjective) definition and synonyms | Macmillan Dictionary.

Is auxiliary a noun or adjective?

auxiliary \awg-ZILL-yuh-ree\ adjective. 1 a : offering or providing help. b : functioning in a subsidiary capacity. 2 of a verb : accompanying another verb and typically expressing person, number, mood, or tense. 3 a : supplementary.

What type of word is auxiliary?

Auxiliary, in grammar, a helping element, typically a verb, that adds meaning to the basic meaning of the main verb in a clause. Auxiliaries can convey information about tense, mood, person, and number.