"OK" can function as an adjective, adverb, interjection, or verb, depending on how it is used in a sentence.
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
adjective, adverb, interjection, noun, verb (used with object) OK.
Overlap is a verb. Example: They didn't have sufficient food for this part of the luncheon, but that was OK since the food from the previous part overlapped to the current dining.
part of speech
The part of speech for this particular word is a noun.
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "explicit" is an adjective.
The part of speech for "twirl" is a verb.
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "lecturer" is a noun.