How do you read these kanji 年々?


How do you guys read these kanji 年々 in a sentence? I've found on Japanese
dictionary websites that it can be read both 'nen-nen' and 'toshi-doshi' and
it means 'year by year'. So which one use in a sentence by those mean?




明鏡国語辞典 says としどし is a 名詞 and ねんねん is a 副詞.

> としどし【年年】〘名〙年を追うごと。年ごと。ねんねん。「ーーにさびれてきた祭事」

> ねんねん【年年】〘副〙年とともにだんだん。年ごとに。「ーー輸入が増加する」

So..

> How do you guys read these kanji 年々 in a sentence?

I'd read it as ねんねん when it's functioning as a 副詞(adverb) by itself, and as
としどし when it's used as a 名詞(noun), followed by a case particle.

