<p><strong>Noun</strong></p><ul><li>a son of one's brother or sister.</li><li>a son of one's spouse's brother or sister.</li><li>an illegitimate son of a clergyman who has vowed celibacy (used as a euphemism).</li><li>(Obsolete) a direct descendant, especially a grandson.</li><li>(Obsolete) a remote male descendant, as a grandnephew or cousin.</li></ul>