shittah tree vs shittah

shittah tree and shittah both are nouns.

Word	Noun	Adjective	Verb	Adverb
shittah tree	Yes	No	No	No
shittah	Yes	No	No	No

As nouns, shittah tree and shittah are synonyms defined as:

shittah tree and shittah: source of a wood mentioned frequently in the Bible; probably a species of genus Acacia

shittah tree (noun)	shittah (noun)
source of a wood mentioned frequently in the Bible; probably a species of genus Acacia	source of a wood mentioned frequently in the Bible; probably a species of genus Acacia