The word boa is a noun. The plural is boas.
Boa tarde (usually earlier part of the evening) or boa noite (later part of the evening and/or before bed)
A boa is part of the classification of animal species known as the snake, which is itself a part of the classification known as a reptile, which is an animal.
it is part of the Disney group
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
what part of speech is beneath
adverb
The part of speech for "explicit" is an adjective.
The part of speech for "lecturer" is a noun.
The part of speech for "rapid" is an adjective.
The part of speech of "came" is a verb.