<p><strong>Preposition</strong></p><ul><li>beneath and covered by: under a table; under a tree.</li><li>below the surface of: under water; under the skin.</li><li>at a point or position lower or further down than: He was hit just under his eye.</li><li>in the position or state of bearing, supporting, sustaining, enduring, etc.: to sink under a heavy load.</li><li>beneath the heading or within the category of: Classify the books under “Fiction” and “General.”</li><li>as designated, indicated, or represented by: to register under a new name.</li><li>below in degree, amount, etc.; less than: purchased under cost.</li><li>below in rank; of less dignity, importance, or the like: A corporal is under a sergeant.</li><li>subject to the authority, direction, or supervision of: a bureau functioning under the prime minister.</li><li>subject to the instruction or advice of: to study the violin under Heifetz.</li><li>subject to the influence, condition, force, etc., of: under these circumstances; born under the sign of Taurus.</li><li>protected, controlled, or watched by: under guard.</li><li>authorized, warranted, or attested by: under one's hand or seal.</li><li>in accordance with: under the provisions of the law.</li><li>during the rule, administration, or government of: new laws passed under President Reagan.</li><li>in the state or process of: under repair; a matter under consideration.</li><li>Nautical: powered by the means indicated: under sail; under steam.</li></ul><p><strong>Adverb</strong></p><ul><li>below or beneath something: Go over the fence, not under.</li><li>beneath the surface.</li><li>in a lower place.</li><li>in a lower degree, amount, etc.: selling blouses for $25 and under.</li><li>in a subordinate position or condition.</li><li>in or into subjection or submission.</li></ul><p><strong>Adjective</strong></p><ul><li>beneath or on the underside: the under threads of the embroidery.</li><li>lower in position.</li><li>lower in degree, amount, etc.</li><li>lower in rank or condition.</li><li>subject to the control, effect, etc., as of a person, drug, or force: The hypnotist had her subject under at once. The patient was under as soon as he breathed the anesthetic.</li></ul><p><strong>Verb Phrase</strong></p><ul><li>to give in; succumb; yield: She tried desperately to fight off her drowsiness, but felt herself going under.</li><li>to fail in business: After 20 years on the same corner they finally went under.</li></ul><p><strong>End of Response</strong></p>