A preposition is a word that shows the relationship between nouns or pronouns and other parts of a sentence, expressing time, place, direction, and more, as in on the table or at school. This article explains types, functions, and uses of prepositions in English.
An adverb is a word that modifies verbs, adjectives, other adverbs, or whole sentences, describing how, when, where, or to what extent something happens. This article explores adverb types, placement, and how they enrich language and expression.