horse fly vs clegg

horse fly and clegg both are nouns.

Word	Noun	Adjective	Verb	Adverb
horse fly	Yes	No	No	No
clegg	Yes	No	No	No

As nouns, horse fly and clegg are synonyms defined as:

horse fly and clegg: large swift fly the female of which sucks blood of various animals

Other synonyms of horse fly include cleg, horsefly.

horse fly (noun)	clegg (noun)
large swift fly the female of which sucks blood of various animals	large swift fly the female of which sucks blood of various animals