Meaning of the word "day by day" in English

What does "day by day" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

day by day

US /deɪ baɪ deɪ/
UK /deɪ baɪ deɪ/

Phrase

gradually, with each day that passes

Example:
She's getting better day by day.
We are making progress day by day.