cypher

n. 零、零的記號、密碼索引書

v. 計算、用密碼書寫

學術名詞

• 密碼：電機工程、數學、電力工程
• 零：數學
• 數字：數學

英文釋義

1. a mathematical element that when added to another number yields the same number
2. a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential
3. a person of no influence
4. a secret method of writing