bottleneck
nounUK /ˈbɒt.əl.nek/
US /ˈbɑː.t̬əl.nek/
A bottleneck is a narrow spot that makes things slow down or get stuck.
The cars slowed down at the bottleneck in the road.
SYNONYMS
OTHER MEANINGS
2. The narrow top part of a bottle.
She poured the juice through the bottle's bottleneck.
3. A part of a process that slows everything else down.
The slow checkout was a bottleneck for the whole store.
4. A style of guitar playing using a glass or metal tube on one finger.
He played blues with a bottleneck on his finger.