noun
: signal ; especially : a warning or informing signal given stealthily or with gestures — usually used in the phrase give the high sign
gave her the high sign when the plainclothes police … had gone off to supper — Ida A. R. Wylie
noun
: signal ; especially : a warning or informing signal given stealthily or with gestures — usually used in the phrase give the high sign
gave her the high sign when the plainclothes police … had gone off to supper — Ida A. R. Wylie
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012