balance, remaining amount of money

account (a registry of pecuniary transactions)

zero-sum

zero (number) / (informal) Used to refer to something measurable being absent or missing.

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

a bank (financial institution)

Synonym of 零ベクトル (rei-bekutoru, “zero vector”)

zero COVID (having zero COVID-19 cases)