driver's licence vs driver's license

driver's licence and driver's license both are nouns.

Word	Noun	Adjective	Verb	Adverb
driver's licence	Yes	No	No	No
driver's license	Yes	No	No	No

As nouns, driver's licence and driver's license are synonyms defined as:

driver's licence and driver's license: a license authorizing the bearer to drive a motor vehicle

Other synonyms of driver's licence include driving licence, driving license.

driver's licence (noun)	driver's license (noun)
a license authorizing the bearer to drive a motor vehicle	a license authorizing the bearer to drive a motor vehicle