shelterbelt vs windbreak

shelterbelt and windbreak both are nouns.

Word	Noun	Adjective	Verb	Adverb
shelterbelt	Yes	No	No	No
windbreak	Yes	No	No	No

As nouns, shelterbelt and windbreak are synonyms defined as:

shelterbelt and windbreak: hedge or fence of trees designed to lessen the force of the wind and reduce erosion

shelterbelt (noun)	windbreak (noun)
hedge or fence of trees designed to lessen the force of the wind and reduce erosion	hedge or fence of trees designed to lessen the force of the wind and reduce erosion