keel
word
Definition
The "keel" is the long, central structure at the bottom of a ship or boat that helps keep it stable and upright in the water. In informal use, it can also mean to fall over or tip, usually said as "keel over."
Usage & Nuances
"Keel" is mainly used in nautical and technical contexts; 'keel over' is informal and means to collapse or faint. The physical "keel" is essential for stability in boats and ships. Not to be confused with "kill." Common collocations: 'on even keel' (stable), 'the ship's keel.'
Example Sentences
The boat's keel keeps it from tipping over.
basic
Our project is finally back on an even keel.
natural
If the keel is damaged, the entire boat could be in danger.
natural
A strong keel is important for safe sailing.
basic
They repaired the ship's old keel last year.
basic
After working in the sun all day, he suddenly keeled over.
natural