Meaning of the word "bad things come in threes" in English

What does "bad things come in threes" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

bad things come in threes

US /bæd θɪŋz kʌm ɪn θriːz/
UK /bæd θɪŋz kʌm ɪn θriːz/
"bad things come in threes" picture

Idiom

a superstitious belief that when one unfortunate event happens, two more will soon follow

Example:
First I lost my keys, then I got a flat tire; I guess it's true that bad things come in threes.
After two accidents in the neighborhood, everyone is worried because bad things come in threes.