1) An act of blocking 2) Artery obstruction 3) Bottleneck 4) Congestion 5) Obstruction 6) Physiological condition 7) Physiological state 8) Something that blocks 9) The act of blocking 10) The state of being blocked Found on https://www.crosswordclues.com/clue/blockage
an act of blocking. · the state of being blocked; an obstructed condition: the blockage of the streets by heavy snows. · something that blocks; obstruction. Found on https://www.infoplease.com/dictionary/blockage