Referential vagueness, plurality, and discourse dependence

Abstract Referentially vague (or ‘ignorance’) indefinites are known to exhibit apparently conflicting behavior: in the singular, they referentially (Giannakidou and Quer 2013, Alonso-Ovalle Menéndez-Benito 2010, 2011, 2013), but plural appear depend on a discourse given set. The phenomenon is typically discussed context of Spanish algún/algunos (Gutiérrez-Rexach 2001, Martí 2008, 2009); this paper we offer extensive novel data from Greek kapjos/kapjoi exhibiting same asymmetry between singular plural. apparent conflict two variants, propose, just that—apparent: remain both uses. Referential vagueness not at odds with familiarity, differences follow NP -ellipsis, potential topicality indefinite, way interacts plurality.