american sign language, babinski sign, danger sign, dollar sign, equal sign, high sign, jacquemier's sign, kernig's sign, minus sign, percent sign, percentage sign, plus sign, radical sign, raynaud's sign, re sign, sign, sign away, sign in, sign industry, sign language, sign manual, sign of the cross, sign of the zodiac, sign off, sign on, sign over, sign painter, sign up, star sign, street sign, sure sign, telltale, v sign, vital sign