pewit vs green plover

pewit and green plover both are nouns.

Word	Noun	Adjective	Verb	Adverb
pewit	Yes	No	No	No
green plover	Yes	No	No	No

As nouns, pewit and green plover are synonyms defined as:

pewit and green plover: large crested Old World plover having wattles and spurs

Other synonyms of pewit include lapwing, peewit.

pewit (noun)	green plover (noun)
large crested Old World plover having wattles and spurs	large crested Old World plover having wattles and spurs
small olive-colored woodland flycatchers of eastern North America
small black-headed European gull