pewit vs lapwing

pewit and lapwing both are nouns.

Word	Noun	Adjective	Verb	Adverb
pewit	Yes	No	No	No
lapwing	Yes	No	No	No

As nouns, pewit and lapwing are synonyms defined as:

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

Other synonyms of pewit include green plover, peewit.

pewit (noun)	lapwing (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