shariah law vs sharia law

shariah law and sharia law both are nouns.

Word	Noun	Adjective	Verb	Adverb
shariah law	Yes	No	No	No
sharia law	Yes	No	No	No

As nouns, shariah law and sharia law are synonyms defined as:

shariah law and sharia law: the code of law derived from the Koran and from the teachings and example of Mohammed

Other synonyms of shariah law include Islamic law, sharia, shariah.

shariah law (noun)	sharia law (noun)
the code of law derived from the Koran and from the teachings and example of Mohammed	the code of law derived from the Koran and from the teachings and example of Mohammed