hansom vs hansom cab

hansom and hansom cab both are nouns.

Word	Noun	Adjective	Verb	Adverb
hansom	Yes	No	No	No
hansom cab	Yes	No	No	No

As nouns, hansom and hansom cab are synonyms defined as:

hansom and hansom cab: a two-wheeled horse-drawn covered carriage with the driver's seat above and behind the passengers

hansom (noun)	hansom cab (noun)
a two-wheeled horse-drawn covered carriage with the driver's seat above and behind the passengers	a two-wheeled horse-drawn covered carriage with the driver's seat above and behind the passengers