Norse deity vs Ullr

Norse deity and Ullr both are nouns.

Word	Noun	Adjective	Verb	Adverb
Norse deity	Yes	No	No	No
Ullr	Yes	No	No	No

As nouns, Ullr is a hyponym of Norse deity; that is, Ullr is a word with a more specific, narrower meaning than Norse deity:

Norse deity: a deity worshipped by the ancient Norsemen
Ullr: (Norse mythology) one of the Aesir known for his beauty and skill with bow and skis; son of Sif and stepson of Thor

Other hyponyms of Norse deity include Aesir, Vanir, Nanna, Norn, weird sister, Sigyn, Ull, Vali, Vidar, Vithar, Vitharr.

Norse deity (noun)	Ullr (noun)
a deity worshipped by the ancient Norsemen	(Norse mythology) one of the Aesir known for his beauty and skill with bow and skis; son of Sif and stepson of Thor