<p><strong>Noun</strong></p><ul><li>Plural: seventies.</li><li>A cardinal number, 10 times 7.</li><li>A symbol for this number, as 70 or LXX.</li><li>A set of this many persons or things.</li><li>Seventies: the numbers, years, degrees, or the like from 70 through 79, as in referring to numbered streets, indicating the years of a lifetime or of a century, or referring to degrees of temperature.<ul><li>Examples: "They live in the Seventies." "His uncle is in his early seventies." "It was in the seventies yesterday."</li></ul></li><li>The Seventy: the body of scholars who produced the Septuagint.</li></ul><p><strong>Adjective</strong></p><ul><li>Amounting to 70 in number.</li></ul>