steganography vs cryptography

steganography and cryptography both are nouns.

Word	Noun	Adjective	Verb	Adverb
steganography	Yes	No	No	No
cryptography	Yes	No	No	No

As nouns, steganography and cryptography are synonyms defined as:

Other synonyms of steganography include coding, secret writing.

steganography (noun)	cryptography (noun)
act of writing in code or cipher	act of writing in code or cipher
	the science of analyzing and deciphering codes and ciphers and cryptograms