内々 うちうち Also written 内内, ないない Meanings の-adjective, Adverb, Noun private; confidential; informal; secret; (within the) family circle; (on the) inside Kanji 内 inside. Read as うち. Example sentences このことは内々にしてください。Please keep this a secret. 内々に話ができないかな?Could we talk in private? Jinuma: Japanese Dictionary · Word lists