The word tangible is an adjective. It describes something which is touchable.
This word is a noun-- the name of something or someone. The plural is acquaintances. Sometimes it's an abstract and sometimes tangible. Examples: "I do not have the pleasure of her acquaintance" (abstract); "Let me introduce to you my acquaintance, Mr. Rumpelstiltskin" (tangible).
A noun, more specifically an abstract noun that refers to a concept rather than a tangible object.
Diction is an abstract noun, meaning it is a concept that is not tangible.
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.