1. (

• code ,
• encipher ,
• cipher ,
• cypher ,
• encrypt ,
• inscribe ,
• write_in_code

) convert ordinary language into code; "We should encode the message for security reasons" ;

2. (

• calculate ,
• cipher ,
• cypher ,
• compute ,
• work_out ,
• reckon ,
• figure

) make a mathematical calculation or computation ;