1. (Proper Adj.) solid materials of the inside part is removed; Empty or filled with air or water inside a solid enclosed object.

English: hollow,
Assamese: গোটোং, ধোন্দোলা, ফোঁপোলা, ফোপোলা,
Bodo: खुलुं, दन्दर, फमफ्ला, लाथिख,
Mising: ru:bong, ru:dong,
Khasi: ka thliew,
Nagamese: cenda, chenda,
Deori: একুৰে-কিৰি, কুৰুং, পুপুলা