1. 0, cipher, cypher, nought, zero

a mathematical element that when added to another number yields the same number

• 0
• cipher
• nought
• zero

2. aught, cipher, cypher, goose egg, nada, naught, nil, nix, nothing, null, zero, zilch, zip, zippo

a quantity of no importance

Example Sentences:
'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'

• aught
• cipher
• goose egg
• nada
• naught
• nil
• nix
• nothing
• null
• zero
• zilch
• zip
• zippo

3. cipher, cypher, nobody, nonentity

a person of no influence

• cipher
• nobody
• nonentity

4. cipher, cryptograph, cypher, secret code

a secret method of writing

• cipher
• cryptograph
• secret code

5. cipher, cypher

a message written in a secret code

• cipher

6. cipher, code, cypher, encipher, encrypt, inscribe, write in code

convert ordinary language into code

Example Sentences:
'We should encode the message for security reasons'

• cipher
• code
• encipher
• encrypt
• inscribe
• write in code

7. calculate, cipher, compute, cypher, figure, reckon, work out

make a mathematical calculation or computation

• calculate
• cipher
• compute
• figure
• reckon
• work out

• bet
• calculate
• count
• depend
• look
• reckon
• figure out
• lick
• puzzle out
• solve
• work
• work out