cipher
英 ['saɪfə]
美['saɪfɚ]
	    - n. 密码;暗号;零
 - vi. 使用密码;计算;做算术
 - vt. 计算;做算术;将…译成密码
 
英英释意
- 1. a message written in a secret code
 
- 2. a mathematical element that when added to another number yields the same number
 
- 3. a quantity of no importance;
 - "it looked like nothing I had ever seen before"
 - "reduced to nil all the work we had done"
 - "we racked up a pathetic goose egg"
 - "it was all for naught"
 - "I didn't hear zilch about it"
 
- 4. a person of no influence
 
- 5. a secret method of writing