sweet pepper plant vs paprika

sweet pepper plant and paprika both are nouns.

Word	Noun	Adjective	Verb	Adverb
sweet pepper plant	Yes	No	No	No
paprika	Yes	No	No	No

As nouns, sweet pepper plant and paprika are synonyms defined as:

sweet pepper plant and paprika: plant bearing large mild thick-walled usually bell-shaped fruits; the principal salad peppers

Other synonyms of sweet pepper plant include bell pepper, Capsicum annuum grossum, pimento, pimiento, sweet pepper.

sweet pepper plant (noun)	paprika (noun)
plant bearing large mild thick-walled usually bell-shaped fruits; the principal salad peppers	a mild powdered seasoning made from dried pimientos
	plant bearing large mild thick-walled usually bell-shaped fruits; the principal salad peppers