The is defined as, (used, esp. before a noun, with a specifying or particularizing effect, as opposed to the indefinite or generalizing force of the indefinite article a or an): the book you gave me; Come into the house.
Firmament is the vault or expanse of the heavens; the sky. .
Synecdoche (noun) is a rhetorical figure whereby a part is substituted for a...
Pacifist: noun; a person who believes in pacifism or is opposed to war or to...
Yes cosmological is a word in the dictionary. The root word is cosmology. !
Wistful means full of longing or unfulfilled desire or showing pensive sadness. ?