Meaning of the word alas in English

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

alas

US /əˈlæs/
UK /əˈlæs/

Exclamation

an expression of grief, pity, or concern

Example:
Alas, my plans have failed.
He was a good man, but alas, he is no longer with us.