1. (v. t.) To refuse.

2. (v. t.) To make ware or aware; to give previous information to; to give notice to; to notify; to admonish; hence, to notify or summon by authority; as, to warn a town meeting; to warn a tenant to quit a house.

3. (v. t.) To give notice to, of approaching or probable danger or evil; to caution against anything that may prove injurious.

4. (v. t.) To ward off.

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