—adj. 1. (of sound) strongly audible; having exceptional volume or intensity: loud talking; loud thunder; loud whispers. 2. making, emitting, or uttering strongly audible sounds: a quartet of loud trombones. 3. clamorous, vociferous, or blatant; noisy: a loud party; a loud demonstration. 4. emphatic or insistent: to be loud in one's praises; a loud denial. 5. garish, conspicuous, or ostentatious, as colors, dress, or the wearer of garish dress: loud ties; a loud dresser. 6. obtrusively vulgar, as manners or persons.
7. strong or offensive in smell.
—adv. 1. in a loud manner; loudly: Don't talk so loud. 2. out loud, aloud; audibly: I thought it, but I never said it out loud. Just whisper, don't speak out loud.