Crosswalk and Roundabout

Crosswalk noun - A path (often marked) where something (as a street or railroad) can be crossed to get from one side to the other.

Roundabout and crosswalk are semantically related. In some cases you can use "Roundabout" instead a noun "Crosswalk".

Roundabout noun - A road junction at which traffic streams circularly around a central island.

Crosswalk and roundabout are semantically related. Sometimes you can use "Crosswalk" instead a noun "Roundabout".