What's the difference between shirl and skirl?

Shirl

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Definition:

• (a.) Shrill.
• (n.) See Schorl.

Example Sentences:

• (1) Among older friends and colleagues, she is known simply as "Shirl the Pearl" – a term that carries with it affection and also huge respect.

Skirl

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Definition:

• (v. t.& i.) To utter in a shrill tone; to scream.
• (n.) A shrill cry or sound.

Example Sentences: