The word "pretty" can function as an adjective, modifying a noun by describing its appearance in a positive way.
The word "pretty" can function as both an adjective and an adverb.
"Bonito" is a noun in Spanish, where it means "pretty" or "nice". However, in English, "bonito" is a noun referring to a type of fish.
"Prettier" is the comparative form of the adjective "pretty."
The word "nightmare" is a noun.
The word "stiffness" is a noun.
The word "it" is a pronoun, specifically a personal pronoun typically used to refer to a previously mentioned noun.
I believe this is a simile.
An adjective in its superlative form.
The term "flood-prone" is an adjective. It describes an area that is likely to experience flooding.
"Dude" is a slang term that is generally used as a noun to refer to a man or a person in a casual and informal way.
The word "itself" is a reflexive pronoun in English. It is used to refer back to the subject of the sentence.
The word 'moose' is a noun, a word for a type of animal; a word for a thing.
simile
The word "stiffness" is a noun.
"This" is a pronoun of the type called "demonstrative".
Onomatopoeia
A gerund which is a type of verb.