The adj loud has 4 senses (first 2 from tagged texts)
1. (50) loud -- (characterized by or producing sound of great volume or intensity; "a group of loud children"; "loud thunder"; "her voice was too loud"; "loud trombones")
2. (1) brassy, cheap, flash, flashy, garish, gaudy, gimcrack, loud, meretricious, tacky, tatty, tawdry, trashy -- (tastelessly showy; "a flash car"; "a flashy ring"; "garish colors"; "a gaudy costume"; "loud sport shirts"; "a meretricious yet stylish book"; "tawdry ornaments")
3. forte, loud -- (used chiefly as a direction or description in music; "the forte passages in the composition")
4. noisy, loud -- (attracting attention by showiness or bright colors; "a noisy sweater")
Overview of adv loud
The adv loud has 1 sense (first 1 from tagged texts)
1. (1) loudly, loud, aloud -- (with relatively high volume; "the band played loudly"; "she spoke loudly and angrily"; "he spoke loud enough for those at the back of the room to hear him"; "cried aloud for help")