The document discusses the expression of plurality in the Indonesian language. It notes that Indonesian nouns are not marked for singular or plural like in English. Plurality can be expressed in Indonesian in several ways including plural determiners, pre-noun and pre-verb markers, context, verbs with certain suffixes, pronouns that are always plural, and reduplication. Reduplication in particular may indicate a fuzzy or imprecise perception rather than strictly referring to "more than one." The frequency of reduplication appears to be increasing over time based on an analysis of older Indonesian texts.