serendipity (noun)

1. In the midst of a chaotic city, they found serendipity when their eyes locked across a crowded coffee shop.

2. The protagonist's life took a turn for the better when they stumbled upon serendipity while exploring an abandoned movie theater.

3. The scientist's accidental discovery in the lab turned out to be a serendipity that revolutionized the field of artificial intelligence.

4. The artist's serendipity came in the form of a discarded paintbrush, which led to the creation of their most acclaimed masterpiece.