writ of error vs writ

writ of error and writ both are nouns.

Word	Noun	Adjective	Verb	Adverb
writ of error	Yes	No	No	No
writ	Yes	No	No	No

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

writ of error: a judicial writ from an appellate court ordering the court of record to produce the records of trial
writ: (law) a legal document issued by a court or judicial officer

Other hypernyms of writ of error include judicial writ.

writ of error (noun)	writ (noun)
a judicial writ from an appellate court ordering the court of record to produce the records of trial	(law) a legal document issued by a court or judicial officer