day-by-day (adjective)

1. In their day-by-day battle against the dark forces, the wizards used their magical powers to protect the kingdom.

2. With each passing day, their love grew stronger and their day-by-day romance turned into a lifelong commitment.

3. The documentary filmmaker captured the day-by-day struggles of endangered animals in their natural habitats.

4. The comedian's day-by-day observations about mundane life situations never failed to make the audience burst into laughter.