1. (n.) A flaring tenon, or tongue (shaped like a bird's tail spread), and a mortise, or socket, into which it fits tightly, making an interlocking joint between two pieces which resists pulling a part in all directions except one.

2. (v. t.) To cut to a dovetail.

3. (v. t.) To join by means of dovetails.

4. (v. t.) To fit in or connect strongly, skillfully, or nicely; to fit ingeniously or complexly.

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