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# keel

«keel» in Mova's school dictionary: **the long piece along the bottom of a boat that keeps it…** — its meaning for a pupil, its sense in the lessons and examples, with 1 sentence of Mova's corpora that use it.

### part of speech

noun (a keel, keels); verb (keel over — informal)

### meaning for a pupil

1) A keel is the long piece along the bottom of a boat that keeps it steady in the water. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#m1)

2) To keel over (informal) is to fall over suddenly, especially when fainting. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#m2)

3) «On an even keel» means calm and steady. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#m3)

### sense in the lessons

Used in sailing, boat-building and everyday phrases: «keel over», «on an even keel». In science, the keel helps a boat stay upright and go straight.

### examples

- The boat's keel scraped on the rocks. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x1)
- He keeled over in the heat. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x2)
- Things are back on an even keel now. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x3)
- Sailing boats need a deep keel. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x4)
- The ship's keel was laid first. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x5)
- The old tree keeled over in the storm. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x6)
- Then they set to work and built a long ship, and its keel they made of the rowan tree. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/#x7)

### note

«Keel over» is informal. Do not confuse with «kneel» (go down on your knees). Safety: if someone keels over, get an adult and call for help.

### In the corpora

- [A bird's strong flight muscles are fixed to a keel on its breastbone.](https://md.mova.elamur.ai/free/en/corpora/school/world/73-birds-feathers-nests-flight/10/)

### Trees and pragmatics

[Every meaning and example of «keel» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/K/keel/), each sentence with its dependency tree and frames.