venire facias vs judicial writ

venire facias and judicial writ both are nouns.

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

As nouns, judicial writ is a hypernym of venire facias; that is, judicial 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
judicial writ: (law) a legal document issued by a court or judicial officer

Other hypernyms of venire facias include writ.

venire facias (noun)	judicial 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