adjective describing or comparing something at a greater height or level
adverb indicating a direction towards a greater height or level
noun a word (other than a pronoun) used to identify any of a class of people, places, or things
adverb a word or phrase that modifies or qualifies an adjective, verb, or other adverb
preposition a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause