sound; noise; note (of musical scale); tone; news; syllable; reading (
Originally the same as 言 (speech) but with an extra line added in the mouth (口) to distinguish the two characters.
《說文》：“音，聲也。生於心有節於外謂之音；宮商角徵羽聲；絲竹金石匏土革木音也。从言，含一。”