<p><strong>Adjective</strong></p><ul><li>twice as large, heavy, strong, etc.</li><li>twofold in size, amount, number, extent, etc.</li><li>composed of two like parts or members</li><li>twofold in form</li><li>paired</li><li>of, relating to, or suitable for two persons</li><li>twofold in character, meaning, or conduct</li><li>dual or ambiguous</li><li>deceitful, hypocritical, insincere</li><li>folded in two; having one half folded over the other</li><li>full-size</li></ul><p><strong>Noun</strong></p><ul><li>anything that is twofold in size or amount</li><li>a duplicate or counterpart</li><li>a type of hotel accommodation with two beds, or sometimes a double bed</li><li>a fold or plait</li><li>an alcoholic drink containing twice the usual amount of alcohol</li><li>a sudden backward turn or bend</li><li>a trick or artifice</li><li>a substitute actor or singer ready to take another's place</li><li>doubles, a game or match in which there are two players on each side</li></ul><p><strong>Verb</strong></p><ul><li>to make double or twice as great</li><li>to bend or fold with or as with one part over another</li><li>to be or have twice as much as</li><li>to sail around</li><li>to pair; couple</li><li>to challenge by making a call that increases the value of tricks to be won or lost</li><li>to put out as the second out of a double play</li></ul><p><strong>Adverb</strong></p><ul><li>to twice the amount, number, extent, etc.; twofold</li><li>two together</li></ul><p><strong>Verb Phrase</strong></p><ul><li>double down</li><li>to share quarters planned for only one person or family</li><li>to bend over, as from pain</li></ul>