<p><strong>Verb</strong></p><ul><li>to consume, spend, or employ uselessly or without adequate return; use to no avail or profit; squander: to waste money; to waste words.</li><li>to fail or neglect to use: to waste an opportunity.</li><li>to destroy or consume gradually; wear away: The waves waste the rock of the shore.</li><li>to wear down or reduce in bodily substance, health, or strength; emaciate; enfeeble: to be wasted by disease or hunger.</li><li>to destroy, devastate, or ruin: a country wasted by a long and futile war.</li></ul><p><strong>Noun</strong></p><ul><li>useless consumption or expenditure; use without adequate return; an act or instance of wasting: The project was a waste of material, money, time, and energy.</li><li>neglect, instead of use: waste of opportunity.</li><li>gradual destruction, impairment, or decay: the waste and repair of bodily tissue.</li><li>devastation or ruin, as from war or fire.</li><li>anything unused, unproductive, or not properly utilized.</li><li>a wild region or tract of land; desolate country, desert, or the like.</li><li>an empty, desolate, or dreary tract or extent: a waste of snow.</li><li>remnants, as from the working of cotton, used for wiping machinery, absorbing oil, etc.</li><li>garbage; refuse.</li></ul><p><strong>Adjective</strong></p><ul><li>not used or in use: waste energy; waste talents.</li><li>(of land, regions, etc.) wild, desolate, barren, or uninhabited; desert.</li><li>having served or fulfilled a purpose; no longer of use.</li><li>rejected as useless or worthless; refuse: to salvage waste products.</li><li>pertaining to material unused by or unusable to the organism.</li><li>designed or used to receive, hold, or carry away excess, superfluous, used, or useless material (often in combination): a waste pipe; waste container.</li></ul>