paddy vs paddy field

paddy and paddy field both are nouns.

Word	Noun	Adjective	Verb	Adverb
paddy	Yes	No	No	No
paddy field	Yes	No	No	No

As nouns, paddy and paddy field are synonyms defined as:

paddy and paddy field: an irrigated or flooded field where rice is grown

Other synonyms of paddy include rice paddy.

paddy (noun)	paddy field (noun)
rice in the husk either gathered or still in the field	an irrigated or flooded field where rice is grown
an irrigated or flooded field where rice is grown