hallmark

1 a device, design, or figure used as an identifying mark the hallmark of the Primrose Pottery Works is the small rose emblem etched on each piece Synonyms ensign, emblem, impresa, logo, symbol, totem, trademarkRelated Words attribute, icon (also ikon), pictograph; logogram, logograph; badge, coat of arms, cognizance, crest, insignia, monogram; colophon, stamp, token

2 something that sets apart an individual from others of the same kind regards kindness and gentleness as the hallmarks of a real man Synonyms affection, attribute, attribution, character, criterion, diagnostic, differentia, feature, fingerprint, characteristic, mark, marker, note, particularity, peculiarity, point, property, quality, specific, stamp, touch, traitRelated Words badge, indication, sign; emblem, symbol, token; charm, grace; excellence, merit, virtue; eccentricity, idiosyncrasy, oddity, quirk; individuality, singularity, uniqueness