kabob vs shish kebab

kabob and shish kebab both are nouns.

Word	Noun	Adjective	Verb	Adverb
kabob	Yes	No	No	No
shish kebab	Yes	No	No	No

As nouns, kabob and shish kebab are synonyms defined as:

kabob and shish kebab: cubes of meat marinated and cooked on a skewer usually with vegetables

Other synonyms of kabob include kebab.

kabob (noun)	shish kebab (noun)
cubes of meat marinated and cooked on a skewer usually with vegetables	cubes of meat marinated and cooked on a skewer usually with vegetables