ひとりでに
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Adverb meaning 'by itself' or 'automatically'. It describes actions that occur without external intervention, often implying spontaneity or natural occurrence.
Theme
At a park, User and their friend Haru are watching an automatic sprinkler system turn on without anyone touching it.
ひとりでに
ひとりでに
by itself, automatically, naturally
Core Language Building BlocksAdverbs & Connectors
Memory Hook
Think of a door that opens 'by itself' without anyone touching it. 『ひとりでに』 (hitorideni, 'by itself') sounds like 'hitori' (alone) + 'de ni' (by) — doing it alone!
Cultural Note
In Japanese, 『ひとりでに』 (hitorideni, 'by itself') is often used in stories or descriptions to indicate spontaneous or automatic actions, such as in folklore where objects move magically.
Forms
Base: ひとりでにAdverb meaning 'by itself' or 'automatically'. It describes actions that occur without external intervention, often implying spontaneity or natural occurrence.