塞

to be closed

to stop up

blockage

stoppage

fort

heart attack

Serbia

inside a fort

to dam up (a stream)

to close up

being closed

unlucky direction (in Onmyōdō; due to the presence of a god such as Ten'ichijin)

mountain stronghold

to be busy

prohibition of speaking

surprising

surprising

outside a fort

piston

fort

fortifying

frontier fort

sea fort

obstruction

fortified city

fortress

plug

blockage of a source

closed window

locked up feeling

eradication of (sources of) evil

to be shrouded by darkness

to fill a hole with earth

lacunar infarction

barrage balloon

to stop (plug) one's ears

blocked state

closing of the winter hearth

cerebral infarction

natural damming (of a river due to landslide, etc.)

impregnable fortress

acute myocardial infarction

blocked

inscrutable are the ways of heaven

damming (e.g. a pond)

cerebral embolism

the future is unpredictable

nasal obstruction

embolus

embolus

intestinal obstruction

upasaka (devout male lay follower of Buddhism)

embolism

occlusion in the circle of Willis

unable to fight back tears

pulmonary embolism

being trapped (and having no way out)

arteriosclerosis obliterans

pulmonary embolism

angle-closure glaucoma

chronic obstructive pulmonary disease

thromboembolism

spinal cord infarction

chronic obstructive respiratory disease

mesenteric vascular occlusion

fat embolism

venous thromboembolism