"What" is a pronoun. It's the object form of "who", meaning that's used after prepostions ("to whom, by whom") and in formal speech as the direct object of verbs (whom should I tell?)
"What" can be a pronoun, adjective, or adverb. In "What did you say?" it's a pronoun. In "what books have you read?" it's an adjective. In "what with one thing and another, this is hard" it's an adverb.
Pronoun
The part of speech that answers "what" or "whom" in a sentence is a pronoun. Pronouns are words like "he," "she," "it," "they," "who," and "what" that replace nouns in a sentence.
The word "whom" is a pronoun. It is used as the object of a verb or preposition in a sentence.
Babies can't grow in the whom, since whom is a part of speech. However, they can grow in the womb, which is a part of the reproductive system. Both before and after birth a babies growth is a direct result of the nutrition that it receives. A baby will grow healthy and strong if given the proper vitamins and nutrients.
The part of speech for this particular word is a noun.
part of speech
In speech and writing the answer to whom (and what) is a noun or pronoun. For example: Whom did John Doe accuse? Answer: He accused Bill Smithers. What did Jane Doe eat?Answer: She ate sirloin steak followed by raspberries with cream.
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.