frequency, how often
フィオナの手紙は段々と頻度が減っていった。
Fiona’s letters became less and less frequent.
お酒を飲む頻度はどれくらいですか？
How often do you drink alcohol?
どれくらいの頻度で柿って食べる？
How often do you eat persimmons?
私の言語は頻度を表す副詞の種類が豊富です。
My language has a rich variety of adverbs expressing frequency.
プリンって、どれぐらいの頻度で食べる？
How often do you eat pudding?