seventy

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun The cardinal number equal to 7 × 10.
• noun A decade or the numbers from 70 to 79.
• noun The decade from 70 to 79 in a century.

from The Century Dictionary.

• Seven times ten; one more than sixty-nine: a cardinal numeral.
• noun The number which is made up of seven times ten.
• noun A symbol representing this number, as 70, or LXX, or lxx.
• noun to the Jewish sanhedrim;
• noun to the body of disciples mentioned in Luke x. as appointed by Christ to preach the gospel and heal the sick;
• noun to the body of scholars who, according to tradition, were the authors of the Septuagint: so called from their number seventy-two (see Septuagint);
• noun to certain officials in the Mormon Church whose duty it is, under the direction of the Twelve Apostles, “to travel into all the world and preach the Gospel and administer its ordinances” (Mormon Catechism).

from the GNU version of the Collaborative International Dictionary of English.

• noun The sum of seven times ten; seventy units or objects.
• noun A symbol representing seventy units, as 70, or lxx.
• noun the translators of the Greek version of the Old Testament called the Septuagint. See Septuagint.
• adjective Seven times ten; one more than sixty-nine.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The cardinal number occurring after sixty-nine and before seventy-one, represented in Roman numerals as LXX and in Arabic numerals as 70.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun the cardinal number that is the product of ten and seven
• adjective being ten more than sixty