two-furrow plough vs double-furrow plough

two-furrow plough and double-furrow plough both are nouns.

Word	Noun	Adjective	Verb	Adverb
two-furrow plough	Yes	No	No	No
double-furrow plough	Yes	No	No	No

As nouns, two-furrow plough and double-furrow plough are synonyms defined as:

two-furrow plough and double-furrow plough: a plough with two moldboards.

Other synonyms of two-furrow plough include double-furrow plow, two-furrow plow.

two-furrow plough (noun)	double-furrow plough (noun)
a plough with two moldboards.	a plough with two moldboards.