Level VI of XX on the frequency path
Frequency rank 668 / 2,608
Mid-frequency: not on every page, but regular in books and magazines.
More common than 波 (Wave), less common than 税 (Tax).
The lineage radical on top trails thread below -- a lineage traced by a single thread of ancestry connecting generations.
系 is rank 668 of 2,608 in published Japanese.
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