As nouns the difference between blocker and roadblock
is that blocker is agent noun of block; something that blocks something specific while roadblock is something that blocks or obstructs a road.
As a verb roadblock is
to prevent, hinder.
blocker
English
Noun
(
en noun)
Agent noun of block; something that blocks something specific.
# A playing card, needed by one player, that is held by another.
# A piece of equipment a goalie uses on his hand in multiple forms of hockey.
Derived terms
* alpha-blocker
* bed blocker
* beta-blocker
* sun blocker
roadblock
English
Noun
(
en noun)
Something that blocks or obstructs a road.
An obstacle or impediment.
Synonyms
* See also
Verb
(
en verb)
(colloquial) To prevent, hinder.
Synonyms
* See also