Fixed expressions
Idioms
English fixed expressions — phrases whose meaning isn't obvious from the individual words. Each entry shows the meaning, an example sentence, and its register.
Idioms containing open, including its inflections. Clear word filter
2 idioms
can of worms
CEFR B1a complicated problem that causes trouble the moment it is touched
Informal
Matching variant: open a can of worms
open mouth, insert foot
CEFR C1used to describe saying something tactless or embarrassing
Informal