(1):
(superl.) Having, making, or being a strong or great sound; noisy; striking the ear with great force; as, a loud cry; loud thunder.
(2):
(superl.) Ostentatious; likely to attract attention; gaudy; as, a loud style of dress; loud colors.
(3):
(adv.) With loudness; loudly.
(4):
(superl.) Emphatic; impressive; urgent; as, a loud call for united effort.
(5):
(superl.) Clamorous; boisterous.