<p><strong>Noun</strong></p><ul><li>One of the surfaces forming the outside of or bounding a thing, or one of the lines bounding a geometric figure.</li><li>Either of the two broad surfaces of a thin, flat object, as a door, a piece of paper, etc.</li><li>One of the lateral surfaces of an object, as opposed to the front, back, top, and bottom.</li><li>Either of the two lateral parts or areas of a thing.</li><li>Either lateral half of the body, especially of the trunk, of a human or animal.</li><li>The dressed, lengthwise half of an animal's body, as of beef or pork, used for food.</li><li>An aspect or phase, especially as contrasted with another aspect or phase.</li><li>Region, direction, or position with reference to a central line, space, or point.</li><li>A slope, as of a hill.</li><li>One of two or more contesting teams, groups, parties, etc.</li><li>The position, course, or part of a person or group opposing another.</li><li>Line of descent through either the father or the mother.</li><li>The space immediately adjacent to something or someone indicated.</li><li>Informal. A side dish, as in a restaurant.</li><li>Usually sides.</li><li>Theater. Pages of a script containing only the lines and cues of a specific role to be learned by a performer.</li><li>Nautical. The hull portion that is normally out of the water, located between the stem and stern to port or starboard.</li><li>Slang. A person, usually a gay man, who does not have or does not prioritize penetrative sex.</li><li>Billiards. Either of the two surfaces of a phonograph record, or the audio recorded on it.</li><li>Either of two audio tracks or pairs of audio tracks on a length of magnetic tape.</li><li>Chiefly British Slang. Affected manner; pretension; assumed haughtiness.</li><li>Impudence; gall.</li></ul><p><strong>Adjective</strong></p><ul><li>Being at or on one side.</li><li>Coming from or directed toward one side.</li><li>Subordinate or incidental.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>To favor or support or refuse to support one group, opinion, etc., against opposition; take sides, as in a dispute.</li></ul>