Adverb
In a loud manner.
Source: Webster's dictionarythe band played loudly Source: Internet
she spoke loudly and angrily Source: Internet
he spoke loud enough for those at the back of the room to hear him Source: Internet
cried aloud for help Source: Internet
obstreperously, he demanded to get service Source: Internet
According to literary historian Sacvan Bercovitch: Bercovitch 1972, p. 106 Few puritans more loudly decried the bosom serpent of egotism than did Cotton Mather; none more clearly exemplified it. Source: Internet