anchovy pear vs river pear

anchovy pear and river pear both are nouns.

Word	Noun	Adjective	Verb	Adverb
anchovy pear	Yes	No	No	No
river pear	Yes	No	No	No

As nouns, anchovy pear and river pear are synonyms defined as:

anchovy pear and river pear: West Indian fruit resembling the mango; often pickled

anchovy pear (noun)	river pear (noun)
West Indian fruit resembling the mango; often pickled	West Indian fruit resembling the mango; often pickled
West Indian tree bearing edible fruit resembling mango