<p><strong>Noun:</strong></p><ul><li>Informal.</li><li>A bicycle.</li><li>A motorbike.</li><li>A motorcycle.</li><li>(In harness racing) A sulky with tires like those of a bicycle.</li></ul><p><strong>Verb:</strong></p><ul><li>(used without object)</li><li>biked</li><li>biking</li><li>To ride a bike: I bike to work.</li></ul>