<p><strong>Noun</strong></p><ul><li>a person or thing that sinks.</li><li>a person employed in sinking, as one who sinks shafts.</li><li>a weight, as of lead, for sinking a fishing line or net below the surface of the water.</li><li>Slang: a doughnut or, sometimes, a biscuit or muffin.</li><li>Baseball: a fastball that curves downward sharply as it reaches the plate.</li></ul>