1. имя существительное 1) клеймо, проба 2) признак (хорошего воспитания, породы и пр.) Синоним(ы): symbol 2. глагол 1) ставить пробу 2) устанавливать критерий

проба на изделиях из благородных металлов

I. noun Etymology: Goldsmiths' Hall, London, England, where gold and silver articles were assayed and stamped 1. a. an official mark stamped on gold and silver articles in England to attest their purity b. a mark or device placed or stamped on an article of trade to indicate origin, purity, or genuineness 2. a distinguishing characteristic, trait, or feature
Example: the dramatic flourishes which are the hallmark of the trial lawyer — Marion K. Sanders II. transitive verb to stamp with a hallmark