also: としどし
year by year; annually; every year
Describes a gradual change or recurring event happening each year. Often used with verbs of increase, decrease, or change.
The population of this town is decreasing year by year.
Technological progress is accelerating every year.
The population is decreasing year by year.
It feels like winters are getting colder year by year.
Non-repetition kanji variant; less common but still seen.
Kun'yomi reading; used as an adverb, often in spoken or informal contexts.