While most European languages obligatorily mark number on nouns, many other
languages have an opposition between a bare general number form and the
plural (Corbett 2000). Such 'Optional Number Languages' are Korean (Kim
2005), Balinese (Arka & Dalrymple 2017), Buriat (Bylinina & Podobryaev
t.a.), and Bangla (Biswas 2013). We present novel evidence from Korean and
Bangla that plural marking on inde...