1. constriction, bottleneck, chokepoint, narrowing

usage: a narrowing that reduces the flow through a channel

2. bottleneck, part, portion

usage: the narrow part of a bottle near the top


1. bottleneck, obstruct, blockade, block, hinder, stymie, stymy, embarrass

usage: slow down or impede by creating an obstruction; "His laziness has bottlenecked our efforts to reform the system"

2. bottleneck, narrow, contract

usage: become narrow, like a bottleneck; "Right by the bridge, the road bottlenecks"

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See also: bottleneck (Dictionary)