Sides is a noun (plural form of side) and a verb (third person singular conjugation of side).
The word neutral is an adjective. It describes someone who is not taking sides.
An isosceles triangle is a noun. It is a triangle with two equal sides.
"Mesa" is a noun. It refers to a flat-topped landform with steep sides, often found in arid regions.
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
The word "bilateral" is an adjective. It describes something that involves or relates to two sides, parties, or countries.
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.