[General] What part of speech is this phrase?

[Silverobama]

If I want to know how a phrase work (as an adjective, adverb, etc) in a sentence. Is it natural to ask:

What part of speech is this phrase?

 

[Rover_KE]

If I want to know how a phrase works (as an adjective, adverb, etc) in a sentence, is it natural to ask:

What part of speech is this phrase?

No.

What kind of phrase is this?

 

[Silverobama]

If I want to know the part of speech of a word in a sentence. Is it natural to ask "What part of speech is this word"?

 

[Rover_KE]

Yes, and I think you already knew that.

 

[emsr2d2]

The commonly accepted "parts of speech" refer to individual words, not phrases. Have a look HERE.