vt.

1. 降低……的价格，使便宜
2. 使受人轻视；贬低
   By your dishonesty you've cheapened yourself in everyone's opinion.

   你为人不诚实，使自己被众人看不起。

3. 使变得低劣
4. 【古】为……讨价还价

vi.

1. 跌价，减价
   Food cheapens in summer.

   食品在夏天跌价。

v.

1. reduce the price of.
2. degrade (something).