1. 0
2. cardinal, ordinal
3. set
4. no

1. nothing
2. nil, nix, nada, null, aught, cipher, cypher, goose egg, naught, zilch, zip, relative quantity, 0
3. nought, cipher, cypher, digit, figure, zero point

1. numerical quantity, adjust
2. set, correct, zero in
2. adjust, set, correct