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proper - adj. (grammar) exactly correct
notice – v. to become aware of (something or someone) by seeing, hearing, and so on
aware – adj. feeling, experiencing, or noticing something (such as a sound, sensation, or emotion) — often + of
adverb – n. a word that describes a verb, an adjective, another adverb, or a sentence and that is often used to show time, manner, place, or degree
preposition – n. a word or group of words that is used with a noun, pronoun, or noun phrase to show direction, location, or time, or to introduce an object
object - n. (grammatical) a noun, noun phrase, or pronoun that receives the action of a verb or completes the meaning of a preposition
conversation - n. an informal talk involving two people or a small group of people
