round / lump / ball / to roll into a ball / to gather / regiment / group / society / classifier for a lump or a soft mass: wad (of paper), ball (of wool), cloud (of smoke)
can (i.e. have the skill, know how to) / likely to / sure to / to meet / to get together / meeting / gathering / union / group / association / a moment (Taiwan pr. for this sense is [hui3])