blockage vs tamponade

blockage and tamponade both are nouns.

Word	Noun	Adjective	Verb	Adverb
blockage	Yes	No	No	No
tamponade	Yes	No	No	No

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

blockage: the physical condition of blocking or filling a passage with an obstruction
tamponade: blockage or closure (as of a wound or body cavity) by (or as if by) a tampon (especially to stop bleeding)

Other hyponyms of blockage include ileus, intestinal obstruction, tamponage.

blockage (noun)	tamponade (noun)
the act of blocking	blockage or closure (as of a wound or body cavity) by (or as if by) a tampon (especially to stop bleeding)
an obstruction in a pipe or tube
the physical condition of blocking or filling a passage with an obstruction