crab apple vs crabapple

crab apple and crabapple both are nouns.

Word	Noun	Adjective	Verb	Adverb
crab apple	Yes	No	No	No
crabapple	Yes	No	No	No

As nouns, crab apple and crabapple are synonyms defined as:

As nouns, crab apple and crabapple are synonyms defined as:

crab apple and crabapple: any of numerous wild apple trees usually with small acidic fruit

Other synonyms of crab apple include wild apple.

As nouns, crab apple and crabapple are synonyms defined as:

crab apple and crabapple: any of numerous varieties of crab apples cultivated for their small acidic (usually bright red) fruit used for preserves or as ornamentals for their blossoms

Other synonyms of crab apple include cultivated crab apple.

crab apple (noun)	crabapple (noun)
small sour apple; suitable for preserving	small sour apple; suitable for preserving
any of numerous wild apple trees usually with small acidic fruit	any of numerous wild apple trees usually with small acidic fruit
any of numerous varieties of crab apples cultivated for their small acidic (usually bright red) fruit used for preserves or as ornamentals for their blossoms	any of numerous varieties of crab apples cultivated for their small acidic (usually bright red) fruit used for preserves or as ornamentals for their blossoms