頻繁

ひんぱん · hinpan · JLPT N1 · na-adj

frequency

頻 (frequent) + 繁 (numerous, repeated): things that keep happening many times, so 'frequency'.

Sounds like 'hin-pan', close to 'hin-pin' in 'pin pan' ping-pong rhythm: a ball hit again and again. Each hit is a repetition.

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