Crosswalk and Pedestrian crossing

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

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

Pedestrian crossing noun - Street crossing where pedestrians have right of way; often marked in some way (especially with diagonal stripes).

Crosswalk and pedestrian crossing are semantically related. You can use "Crosswalk" instead a noun phrase "Pedestrian crossing".