pedestrian crossing vs zebra crossing

pedestrian crossing and zebra crossing both are nouns.

Word	Noun	Adjective	Verb	Adverb
pedestrian crossing	Yes	No	No	No
zebra crossing	Yes	No	No	No

As nouns, pedestrian crossing and zebra crossing are synonyms defined as:

pedestrian crossing and zebra crossing: street crossing where pedestrians have right of way; often marked in some way (especially with diagonal stripes)

pedestrian crossing (noun)	zebra crossing (noun)
street crossing where pedestrians have right of way; often marked in some way (especially with diagonal stripes)	street crossing where pedestrians have right of way; often marked in some way (especially with diagonal stripes)