kebab vs shish kebab

kebab and shish kebab both are nouns.

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

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

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

Other synonyms of kebab include kabob.

kebab (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