noun (n)

• the property of a more than adequate quantity or supply(noun.attribute)

  Example:
  An age of abundance.
  

  Synonym:
  copiousness, teemingness
  Antonym:
  scarceness, scarcity
  

  source: wordnet30
• (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present(noun.linkdef)

  source: wordnet30
• (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million(noun.linkdef)

  source: wordnet30
• An overflowing fullness; ample sufficiency; great plenty; profusion; copious supply; superfluity; wealth: -- strictly applicable to quantity only, but sometimes used of number.(noun)

  source: webster1913