1. a secret or disguised way of writing; a code
2. a person or thing of no importance; a nonentity
3. the mathematical symbol (0) denoting absence of quantity; zero

1. to use figures in a mathematical calculation

Examples

• The spy sent a message written in cypher.
• Without her team, she felt like a cypher in the organization.
• The ancient cypher was finally decoded by historians.
• He spent hours cyphering the complex equations.
• The cypher at the end of the number represented zero.
• The secret cypher contained military intelligence.
• She was tired of being treated like a cypher at work.