THESAURUS
skull and crossbones
Azrael, Black Death, Death, Grim Reaper, Pale Death, Reaper, angel of death, armory, badge, badge of office, badges, baton, blazonry, brassard, button, cap and gown, chain, chain of office, class ring, cockade, collar, cross, crossbones, danger sign, decoration, dress, eagle, early symptom, emblems, ensigns, falling barometer, fasces, figurehead, fleur-de-lis, gathering clouds, hammer and sickle, heraldry, high sign, insignia, lapel pin, livery, mace, mantle, markings, medal, memento mori, mortarboard, old school tie, omen, pale horse, pale rider, pin, precursor, preliminary sign, premonitory sign, premonitory symptom, prodroma, prodrome, quarantine flag, red flag, red light, regalia, ring, rose, school ring, shamrock, sickle of Death, sigillography, skull, sphragistics, staff, storm petrel, stormy petrel, swastika, symptom, tartan, that fell sergeant, that grim ferryman, thistle, thundercloud, thunderhead, tie, uniform, verge, wand, warning sign, warning signal, white cross, yellow flag, yellow jack