IPA: /ˈlændzmən/
KK: /ˈlændzˌmæn/
A person who comes from the same area or country as someone else, often used to refer to fellow Jews from the same region.
When I met him in New York, I felt a connection because he was a landsman from my hometown.
Landsman → The word is formed from "land" (from Old English *land*, meaning ground or territory) and "-sman" (from Old English *man*, meaning person). A landsman is a person from the land or a person who is not a sailor, typically referring to someone who lives on land rather than at sea.
Think of a 'person' ('-sman') who is from the 'land' — that's why a landsman refers to someone who lives on land.