jujube vs Christ's-thorn

jujube and Christ's-thorn both are nouns.

Word	Noun	Adjective	Verb	Adverb
jujube	Yes	No	No	No
Christ's-thorn	Yes	No	No	No

As nouns, jujube and Christ's-thorn are synonyms defined as:

Other synonyms of jujube include Jerusalem thorn, jujube bush, Ziziphus jujuba.

jujube (noun)	Christ's-thorn (noun)
chewy fruit-flavored jellied candy (sometimes medicated to soothe a sore throat)	spiny tree having dark red edible fruits
dark red plumlike fruit of Old World buckthorn trees	thorny Eurasian shrub with dry woody winged fruit
spiny tree having dark red edible fruits