1. [ verb ] hinder or prevent the progress or accomplishment of
Synonyms: block hinder stymie stymy embarrass blockade

"His brother blocked him at every turn"

Related terms: prevent hang check stonewall bottleneck filibuster blockage stymie obstructionist obstruction
2. [ verb ] block passage through
Synonyms: occlude impede block close_up obturate jam

"obstruct the path"

Related terms: free impede barricade clog blockade dam suffocate tie_up barricade barricade screen land_up obstruction blocking obturator obstruction
3. [ verb ] shut out from view or get in the way so as to hide from sight
Synonyms: block

"The thick curtain blocked the action on the stage" "The trees obstruct my view of the mountains"

Related terms: hide barricade blockage
Similar spelling:   obstructor