simple past tense and past participle of block up

Obstructed by a blockage. / Having nasal congestion.

Obstructed from proceeding.

plural of block section

(rail transport) In railway signalling, a section of track on which, in normal circumstances, only one train is allowed at one time.

A residential building consisting of apartments.

(chiefly US and Canada, idiomatic) A traffic jam resulting from motorists slowing to look at a motor vehicle collision or other roadside distraction.

(psychology) Repression of painful thoughts. / (psychology) Inability to continue a train of thought.

(historical) A small block, often carved with steps, used for mounting or dismounting a horse at a pub, courthouse etc.

plural of heart block