1. tocsin(n = noun.communication) alarm bell - the sound of an alarm (usually a bell);
is a kind of alarm, alarum, alert, warning signal
2. tocsin(n = noun.artifact) warning bell - a bell used to sound an alarm;
is a kind of bell
An alarm bell, or the ringing of a bell for the purpose of alarm. [1913 Webster]
"The loud tocsin tolled their last alarm." [1913 Webster]
tocsin, n. an alarm bell or signal.
Etymology:
F f. OF touquesain, toquassen f. Prov. tocasenh f. tocar TOUCH + senh signal-bell
N alarm, alarum, larum, alarm bell, tocsin, alerts, beat of drum, sound of trumpet, note of alarm, hue and cry, fire cross, signal of distress, blue lights, war-cry, war- whoop, warning, fogsignal, foghorn, yellow flag, danger signal, red light, red flag, fire bell, police whistle, false alarm, cry of wolf, bug-bear, bugaboo, alarming, Int, sauve qui peut!, every man for himself!, qui vive?.