OP オー・ピー Meanings Noun opening credits; title sequence (oft. read オープニング) theme song (played during the opening credits of a TV show, etc.) See also: 主題歌 (しゅだいか). overprint Words containing OP OPP (オー・ピー・ピー) ortho-phenylphenol VSOP (ブイ・エス・オー・ピー) very superior old pale (cognac) Jinuma: Japanese Dictionary · Word lists