<p><strong>Noun</strong></p><ul><li>a dirty mark or smear</li><li>a smeary state</li><li>a stifling smoke</li><li>a smoky fire, especially one made for driving away mosquitoes or safeguarding fruit trees from frost</li></ul><p><strong>Verb (used with object)</strong></p><ul><li>to mark with dirty streaks or smears</li><li>to fill with smudge, as to drive away insects or protect fruit trees from frost</li></ul><p><strong>Verb (used without object)</strong></p><ul><li>to form a smudge on something</li><li>to become smudged: White shoes smudge easily</li><li>to smolder or smoke; emit smoke, as a smudge pot</li></ul>