What does "abutter" mean?

One who, or that which, abuts, specifically, the owner of a contiguous estate.

What is a synonym for "abutter"?

Common synonyms include: adjacent owner, bystander, landowner, neighbor, onlooker, tangent.

/əˈbʌ.tɚ/ noun

noun ·Rare ·Advanced level

Noun

1
One who, or that which, abuts, specifically, the owner of a contiguous estate.
"the abutters on a street or a river"
2
the owner of contiguous property wordnet

"the abutters on a street or a river"

From abut + -er.