noun
increasing daily; day by day
Used as an adverbial noun, often with に, to describe something that grows or intensifies with each passing day.
日増しに寒くなってきた。
It's getting colder day by day.
彼の日本語は日増しに上達している。
His Japanese is improving day by day.
noun
foodstuffs left out for many days
Rare, archaic noun referring to food that has been left out and accumulated over days. Primarily encountered in the compound 日増し物.
See also: 日増し物
「日増し物」という言葉は、昔の食べ物の保存状態を表すのに使われた。
The word 日増し物 was used to describe the state of food preservation in the past.