A noun
Best is adjective and policy is noun
Honesty is a noun.
Doctrine is a noun. It defines a policy or way of doing something.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
to put policy into law
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.