Meaning of the word "in sum" in English

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

in sum

US /ɪn sʌm/
UK /ɪn sʌm/

Phrase

used to introduce a summary of what has been said or written

Example:
In sum, the project was a success despite initial challenges.
The report covered many details, but in sum, the economy is improving.