mirror symmetry, parity bit, conservation of parity, space-reflection symmetry, comparableness, equipollence, equalness, equivalence, equal, equiponderance, more...

oddity, odd number

even parity, odd parity, vertical parity, horizontal parity, longitudinal parity, cross parity, diagonal parity, block parity, more...

odd, strategic, nuclear, rough, economic, even, high, uncovered, military, old, opposite

equal standing,   equal value,   equal measure,   equal importance,   equal status,   equal power,   functional equality,   equal strength,   a state of equality,   equal contribution