lemon vs gamboge

lemon and gamboge both are nouns.

Word	Noun	Adjective	Verb	Adverb
lemon	Yes	No	No	No
gamboge	Yes	No	No	No

As nouns, lemon and gamboge are synonyms defined as:

Other synonyms of lemon include lemon yellow, maize.

lemon (noun)	gamboge (noun)
an artifact (especially an automobile) that is defective or unsatisfactory	a strong yellow color
a strong yellow color	a gum resin used as a yellow pigment and a purgative
a distinctive tart flavor characteristic of lemons
yellow oval fruit with juicy acidic flesh
a small evergreen tree that originated in Asia but is widely cultivated for its fruit