lurk vs scupper

lurk is not a noun while scupper is a noun.

Word	Noun	Adjective	Verb	Adverb
lurk	No	No	Yes	No
scupper	Yes	No	Yes	No

As verbs, lurk and scupper are synonyms defined as:

Other synonyms of lurk include ambuscade, ambush, bushwhack, lie in wait, waylay.

lurk (noun)	scupper (noun)
	drain that allows water on the deck of a vessel to flow overboard

lurk (verb)	scupper (verb)
wait in hiding to attack	put in a dangerous, disadvantageous, or difficult position
to monitor a web forum or similar without making your presence pubilc	wait in hiding to attack
be about a place without any apparent purpose
lie in wait, lie in ambush, behave in a sneaky and secretive manner