<p><strong>verb</strong></p><ul><li>to wash (clothes, linens, etc.).</li><li>to wash and iron (clothes).</li><li>to disguise the source of (illegal or secret funds or profits), usually by transmittal through a foreign bank or a complex network of intermediaries.</li><li>to disguise the true nature of (a transaction, operation, or the like) by routing money or goods through one or more intermediaries.</li><li>to remove embarrassing or unpleasant characteristics or elements from in order to make more acceptable: He'll have to launder his image if he wants to run for office.</li></ul><p><strong>noun</strong></p><ul><li>(in ore dressing) a passage carrying products of intermediate grade and residue in water suspension.</li><li>(in metallurgy) a channel for conveying molten steel to a ladle.</li></ul>