noun · money owed for goods, services, or loans; a bill to be paid

他欠了一大笔账。

noun, verb · a record of financial transactions or a ledger

他在账上一笔一笔记录得很清楚。

verb, noun · a cloth shelter or tent, typically used by military commanders in historical contexts.

将军在账中召见部下，准备商讨下一步的作战方案。