First opened Tuesday, September 5, 2006
にこにこ
にこにこ
- head-high (atamadaka): falls after mora 1
How to read it: a line over a kana means the voice is high there, and ↓ marks where it drops. A kana with no line is low. With no ↓ the pitch stays high to the end and does not drop even on a following particle (が, は).
smile sweetly, smiley
Nikoniko's niko is onomatopoeic for smiling, also seen in にこやか (nikoyaka) and にこり (nikori).
Taken apart
No breakdown is shown for this word: Wiktionary's text for it doesn't give a split that spells the word and joins to its reading, and any other split would be a guess.
In a sentence
We don't have the data for this section. The pinned Tatoeba export has no sentence with a translation that uses this word and passes our filter.
What Wiktionary says
Quoted line by line from Wiktionary's Etymology section for this reading, taken from one dated dump so it can't change underneath us. Nothing below is paraphrased.
- “The element にこ (niko) is onomatopoeic for smiling, and also seen in にこやか (nikoyaka, “smiling”) and にこり (nikori, “with a bright smile”).”
Source: Wiktionary: にこにこ (dump of 2026-09-02), available under CC BY-SA 4.0. Reading, meaning and part of speech from JMdict, and kanji readings from KANJIDIC2 (EDRDG).
What the labels mean
- 和語 Native Japanese
- Words that were already Japanese before Chinese vocabulary arrived — usually written with kun'yomi and often short.