blockade UK /blɒˈkeɪd/US /blɑˈkeɪd/noun 6verb 1forms 3 noun6 •The physical blocking or surrounding of a place, especially a port, in order to prevent commerce and traffic in or out.A six-day blockade from 28 May to 2 June saw NR [National Rail] straighten the track through the station, facilitating a linespeed increase from 60mph to 85mph over a 4km stretch. — 2019 •Any form of formal isolation or inhibition of something, especially with the force of law or arms. •The ships or other forces used to effect a naval blockade. •Inhibition of the activity (function) of chemical messengers or their receptors, such as (often) receptor antagonism. •The act of preventing an opponent's pawn moving by placing a piece in front of it. •Synonym of prime. verb1 •To create a blockade against. formsblockaded · blockading · blockades