In linguistics, declension is the changing of the form of a word, generally to express its syntactic function in the sentence, by way of some inflection. The inflectional change of verbs is called conjugation. Declensions may apply to nouns, pronouns, adjectives, adverbs, and articles to indicate number (e.g. singular, dual, plural), case (e.g. nominative case, accusative case, genitive case, dative case), gender (e.g. masculine, neuter, feminine), and a number of other grammatical categories. Declension occurs in many of the world's languages. Declension is an important aspect of language families like American (such as Quechuan), Indo-European (German, Slavic, Sanskrit, Latin), Bantu (Zulu, Kikuyu), Semitic (Modern Standard Arabic), Finno-Ugric (Hungarian, Finnish, Estonian), Turkic (Turkish). Old English was an inflectional language, but largely abandoned inflectional changes as it evolved into Modern English. Though traditionally classified as synthetic, Modern English has moved towards an analytic language.