paddy vs rice paddy

paddy and rice paddy both are nouns.

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

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

Other synonyms of paddy include paddy field.

paddy (noun)	rice paddy (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