Leatrix Sounds is a complete sound browser for World of Warcraft. You can browse, search and play any sound in the game including emote sounds, boss sounds, NPC sounds, spell sounds, dialog, music, ambiance and more. Both sound files and sound kits are included.
For example, you can search for things like Jaina, Muradin, Ymiron, Lich King, Power Word Shield, Gnome Female, Silly, Zone Forest Day, Forest Scary Night, etc.
Enter /lts to toggle Leatrix Sounds.