congest congest /kənˈdʒɛst/

verb

1. Become or cause to become obstructed  ( back up , choke , clog up , choke off , clog , congest , foul )
   become or cause to become obstructed
    The leaves clog our drains in the Fall
   The leaves clog our drains in the Fall
    The water pipe is backed up
   The water pipe is backed up