single-furrow plough vs single-furrow plow

single-furrow plough and single-furrow plow both are nouns.

Word	Noun	Adjective	Verb	Adverb
single-furrow plough	Yes	No	No	No
single-furrow plow	Yes	No	No	No

As nouns, single-furrow plough and single-furrow plow are synonyms defined as:

single-furrow plough and single-furrow plow: a plough that has only one wheel at the front and handles at the rear for the ploughman to steer and maneuver it.

single-furrow plough (noun)	single-furrow plow (noun)
a plough that has only one wheel at the front and handles at the rear for the ploughman to steer and maneuver it.	a plough that has only one wheel at the front and handles at the rear for the ploughman to steer and maneuver it.