Meaning of the word "in all probability" in English

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

in all probability

US /ɪn ɔl prɑbəˈbɪlɪti/
UK /ɪn ɔːl prɒbəˈbɪlɪti/

Phrase

very likely to happen; almost certainly

Example:
In all probability, he will win the election.
She will, in all probability, arrive late as usual.