bubo vs lymph gland

bubo and lymph gland both are nouns.

Word	Noun	Adjective	Verb	Adverb
bubo	Yes	No	No	No
lymph gland	Yes	No	No	No

As nouns, lymph gland is a hypernym of bubo; that is, lymph gland is a word with a broader meaning than bubo:

bubo: a lymph node that is inflamed and swollen because of plague or gonorrhea or tuberculosis
lymph gland: the source of lymph and lymphocytes

Other hypernyms of bubo include lymph node, node, symptom.

bubo (noun)	lymph gland (noun)
a lymph node that is inflamed and swollen because of plague or gonorrhea or tuberculosis	the source of lymph and lymphocytes