noun
A octagon is a octagon without the same angles as the others.
An octagon can be used to create a tessellation, but an octagon cannot tessellate on its own.
Octagons is the plural of octagon
An octagon has 8 sides and 8 corners.
An octagon has 8 vertices.
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
You should be able to do a keyword search in the title and come up with a list of titles to choose from. Example: I know the title had Octagon in it, so I search for title "Octagon" and titles like "Secret of the Octagon House" and "Octagon Magic" come up.
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.
The part of speech for "breezy" is an adjective.
The part of speech for "buried" is a verb.