obstructed or congested, so as to make movement or flow difficult or impossible

a blocked nose

a blocked sewer

make the movement or flow in (a passage, pipe, road, etc.) difficult or impossible

the narrow roads were blocked by cars

block up the holes with sticky tape

impress text or a design on (a book cover)

shape or reshape (a hat) on a mould

nobody cleans and blocks old felt hats any more

design or plan the movements of actors on a stage or movie set