venire facias vs writ

venire facias and writ both are nouns.

Word	Noun	Adjective	Verb	Adverb
venire facias	Yes	No	No	No
writ	Yes	No	No	No

As nouns, writ is a hypernym of venire facias; that is, writ is a word with a broader meaning than venire facias:

venire facias: a judicial writ ordering a sheriff to summon people for jury duty
writ: (law) a legal document issued by a court or judicial officer

Other hypernyms of venire facias include judicial writ.

venire facias (noun)	writ (noun)
a judicial writ ordering a sheriff to summon people for jury duty	(law) a legal document issued by a court or judicial officer