blockade vs obstructer

blockade and obstructer both are nouns.

Word	Noun	Adjective	Verb	Adverb
blockade	Yes	No	Yes	No
obstructer	Yes	No	No	No

As nouns, obstructer is a hypernym of blockade; that is, obstructer is a word with a broader meaning than blockade:

Other hypernyms of blockade include impediment, impedimenta, obstruction, obstructor.

blockade (noun)	obstructer (noun)
a war measure that isolates some area of importance to the enemy	any structure that makes progress difficult
prevents access or progress	someone who systematically obstructs some action that others want to take

blockade (verb)	obstructer (verb)
impose a blockade on
obstruct access to
render unsuitable for passage
hinder or prevent the progress or accomplishment of