drainpipe vs scupper

drainpipe and scupper both are nouns.

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

As nouns, scupper is a hyponym of drainpipe; that is, scupper is a word with a more specific, narrower meaning than drainpipe:

Other hyponyms of drainpipe include culvert, cloaca, sewer, sewerage, soil pipe, trap.

drainpipe (noun)	scupper (noun)
a pipe through which liquid is carried away	drain that allows water on the deck of a vessel to flow overboard

drainpipe (verb)	scupper (verb)
	put in a dangerous, disadvantageous, or difficult position
	wait in hiding to attack