← Back to browsegrinningnoun#17,321TranslationsニヤニヤニヤニヤニヤリニヤリニマニマニマニマEnglish definitiona facial expression characterized by turning up the corners of the mouthExamplesTom's grinning.Tom is grinning.Similar wordsginninggrindinggringoinningwinninggunning← oversleptcollars →