an obstruction that stands in the way (and must be removed or surmounted or circumvented)
something immaterial that stands in the way and must be circumvented or surmounted; "lack of imagination is an obstacle to one's advancement"; "the poverty of a district is an obstacle to good education"; "the filibuster was a major obstruction to the success of their plan"
a tight feeling in some part of the body; "he felt a constriction in her chest"; "she felt an alarming tightness in her chest"; "emotion caused a constriction of his throat"
tight or narrow compression
a narrowing that reduces the flow through a channel
a wrestling hold in which the arms are pressed against the opponent's windpipe
complete power over a person or situation; "corporations have a stranglehold on the media"; "the president applied a chokehold to labor disputes that inconvenienced the public"
a seizure (or a type of epilepsy characterized by such seizures) of short duration characterized by momentary unconsciousness and local muscle spasms or twitching
termination of operations; "they regretted the closure of the day care center"
a Gestalt principle of organization holding that there is an innate tendency to perceive incomplete objects as complete and to close or fill gaps and to perceive asymmetric stimuli as symmetric
a rule for limiting or ending debate in a deliberative body
terminate debate by calling for a vote; "debate was closured"; "cloture the discussion"
a punishment in which a student must stay at school after others have gone home; "the detention of tardy pupils"
a state of being confined (usually for a short time); "his detention was politically motivated"; "the prisoner is on hold"; "he is in the custody of police"
(figurative) a course of action that is unproductive and offers no hope of improvement; "all the clues led the police into blind alleys"; "so far every road that we've been down has turned out to be a blind alley"