Number in Sign Languages

In sign languages, just as in many spoken languages, number can be marked on nouns, pronouns, and verbs, and quantifiers are used to specify quantity within noun phrases. The chapter does not address the expression of grammatical number in one specific sign language, but rather describes patterns found in various sign languages, focusing on modality-independent and modality-specific properties of number marking. As for the former, nominal and verbal plurals are commonly realized by reduplication. As for number-marking strategies specific to visual–spatial languages, it is found that sign languages employ the two hands (e.g. lexical plurality), the signing space in front of the signer's body (e.g. plural marking on predicates), and specific reduplication types that are not attested in spoken languages (e.g. sideward reduplication of certain nouns). In addition, the choice of pluralization strategy is determined by modality-specific phonological features, and we are thus dealing with phonologically conditioned allomorphy.