番号【ばんごう】
number, series of digits
信号【しんごう】
signal, signalling, signaling, traffic light, traffic signal
記号【きごう】
symbol, code, sign, notation
暗号【あんごう】
code, password, cipher
称号【しょうごう】
title, name, degree
号令【ごうれい】
order (esp. to a number of people), command, ritual of bowing at start and end of school class
年号【ねんごう】
name of an imperial era (e.g. Heisei, Shōwa), Japanese era name
号外【ごうがい】
newspaper extra
怒号【どごう】
angry roar, bellow
符号【ふごう】
sign, mark, symbol, code, sign (e.g. positive, negative)
号泣【ごうきゅう】
crying loudly, bawling, wailing, lamentation, crying one's eyes out (without making noise), breaking into a flood of tears, crying buckets, weeping
元号【げんごう】
name of an imperial era (e.g. Heisei, Shōwa), Japanese era name