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What is the Meaning of “Keel”?

Keel
/kiːl/
noun C1 Tier 4 (Top 10,000 words)

The flat bottom part of a ship that keeps it stable in water

Definition of Keel

Quick Meaning of Keel

The flat bottom part of a ship that keeps it stable in water

Detailed Definition of Keel

The longitudinal structure running along the bottom of a ship's hull, providing stability; to overturn or capsize (verb form)

How to Pronounce Keel

IPA: /kiːl/
keel

Stress pattern: o (1-syllable word).

Tip: Pronounced /kiːl/ with long 'ee' sound

Watch out: Check IPA: /kiːl/

Full pronunciation guide for “keel” →

Origin and Etymology of Keel

From Old Norse 'kjölr' meaning ship's keel. Related to Germanic languages. Used in nautical English since Middle Ages.

How to Use Keel in a Sentence

Each example shows “keel” with a CEFR level so learners can pick examples that match their fluency.

  • “The ship's keel was damaged when it hit the rocky coast.”
    C1 formal
  • “A sailboat's keel extends below the hull for stability.”
    C1 written
  • “The keel of the vessel was reinforced with steel plating.”
    C1 formal

Synonyms and Antonyms of Keel

Common Synonyms for Keel

Smart Synonyms for Keel — When to Use Each

hull
Outer body of a ship structure
foundation
Bottom structural support element

See all synonyms for “keel” →

Common Collocations with Keel

These phrases pair with “keel” in everyday English:

  • ship's keel
  • keel over
  • damage the keel
  • keel haul
  • even keel

Common Mistakes When Using Keel

Even fluent speakers slip up with “keel”. Here’s how to avoid the most common errors:

✗ Wrong: The boat keeled on the bottom of the water
✓ Correct: The boat's keel is at the bottom of the water
Why: Keel is a noun (structure), not a verb describing position
✗ Wrong: The keel have been damaged
✓ Correct: The keel has been damaged
Why: Keel is singular; use 'has' not 'have'
✗ Wrong: A ship needs a keel for to stay stable
✓ Correct: A ship needs a keel to stay stable
Why: Use infinitive 'to stay' not 'for to stay'

Other Forms of Keel

Frequently Asked Questions About Keel

What is the meaning of "Keel"?

The flat bottom part of a ship that keeps it stable in water

How do you pronounce "Keel"?

The IPA is /kiːl/. Pronounced /kiːl/ with long 'ee' sound

What part of speech is "Keel"?

"Keel" is a noun at C1 level (Common European Framework).

What are synonyms for "Keel"?

Common synonyms include bottom, base, hull.

How do you use "Keel" in a sentence?

For example: "The ship's keel was damaged when it hit the rocky coast."

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