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1. The physical condition of blocking or filling a passage with an obstruction
   - obstruction
    
2. An obstruction in a pipe or tube
   "we had to call a plumber to clear out the blockage in the drainpipe";
   - block, closure, occlusion, stop, stoppage
    
3. The act of blocking
   - closure, occlusion

Derived forms: blockages

Type of: impediment, impedimenta, obstructer, obstruction, obstructor, physical condition, physiological condition, physiological state

Encyclopedia: Blockage