にっこり Common word JLPT N3 LinksSentence search for にっこりSentence search for ニッコリSentence search for にこりSentence search for ニコリEdit in JMdict Adverb (fukushi), Adverb taking the 'to' particle, Suru verb1. sweetly (smiling); broadly (grinning)Onomatopoeic or mimetic word, See also ニコニコOther formsニッコリ、にこり、ニコリ Discussions Log in to talk about this word.