The word hey is an interjection. It is an informal greeting.
part of speech
Adjective
What part of speech is thaw
Abraham Lincoln
The part of speech for oscillate is verb.
The word hey is an interjection. It is an informal greeting.
Hey is an interjection or an exclamation. Often followed by an exclamation mark! "Hey! They opened the cafeteria early today for breakfast."
It's an interjection. a+ pronoun
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
Traditionally, the 8 parts of speech include a common 7 : the noun, pronoun, verb, adjective, adverb, conjunction, and preposition. Various groups list the 8th part of speech as either the article (a, an, the) or the interjection (hey!). Another candidate for a separate 9th part of speech is the "verbal." This is often the gerund (noun) form, ending in -ing. Verbals can be used as adjectives, for example: eating machine, teaching genius, giving person. (see related question)
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.