- Lock-in bad energy deterrent - Obstruct - Obstruct passage - Obstruction in a pipe - The shutting up of a place by troops or ships, with
the purpose of preventing ingress or egress, or the reception of
supplies; as, the blockade of the ports of an enemy. - An obstruction to passage. - To shut up, as a town or fortress, by investing it
with troops or vessels or war for the purpose of preventing ingress or
egress, or the introduction of supplies. See note under Blockade, n.