Meaning of the word "if all else fails" in English

What does "if all else fails" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

if all else fails

US /ɪf ɔl ɛls feɪlz/
UK /ɪf ɔl ɛls feɪlz/

Idiom

if all other methods or attempts are unsuccessful, this is a last resort

Example:
If all else fails, we can always call a taxi.
Try to fix it yourself, but if all else fails, take it to a professional.