What's the difference between smew and snew?

Smew

Definition:

• (n.) small European merganser (Mergus albellus) which has a white crest; -- called also smee, smee duck, white merganser, and white nun.
• (n.) The hooded merganser.

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Snew

Definition:

• (v. i.) To snow; to abound.

Example Sentences: