First opened Tuesday, January 14, 2020
一旦
いったん
- flat (heiban)
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).
once, for a moment
Taken apart
We don't have the data for this section. Wiktionary has no Etymology section for this reading, and a split made without one would be a guess.
In a sentence
いったん結婚したらおしまいだよ。
Once you are married, you are done for.
いったん始めたら、やり続けてください。
Once you start, carry it on.
Sentences are from Tatoeba (CC BY 2.0 FR), picked by fixed rules from a dated export and shown unchanged. Nobody has reviewed them one by one.
What Wiktionary says
We don't have the data for this section. The pinned Wiktionary dump has no Etymology section for this reading, so nothing is said about where the word comes from.
What the labels mean
- 漢語 Sino-Japanese
- Words built from Chinese-derived morphemes — borrowed from Chinese or coined in Japan out of Chinese parts — read with on'yomi.