syllepsis vs zeugma

syllepsis and zeugma both are nouns.

Word	Noun	Adjective	Verb	Adverb
syllepsis	Yes	No	No	No
zeugma	Yes	No	No	No

As nouns, zeugma is a hypernym of syllepsis; that is, zeugma is a word with a broader meaning than syllepsis:

syllepsis: use of a word to govern two or more words though agreeing in number or case etc. with only one
zeugma: use of a verb with two or more complements, playing on the verb's polysemy, for humorous effect

syllepsis (noun)	zeugma (noun)
use of a word to govern two or more words though agreeing in number or case etc. with only one	use of a verb with two or more complements, playing on the verb's polysemy, for humorous effect