pleasure ground vs amusement park

pleasure ground and amusement park both are nouns.

Word	Noun	Adjective	Verb	Adverb
pleasure ground	Yes	No	No	No
amusement park	Yes	No	No	No

As nouns, pleasure ground and amusement park are synonyms defined as:

pleasure ground and amusement park: a commercially operated park with stalls and shows for amusement

Other synonyms of pleasure ground include funfair.

pleasure ground (noun)	amusement park (noun)
a commercially operated park with stalls and shows for amusement	a commercially operated park with stalls and shows for amusement