WordRel.com

• something added to complete or embellish or make perfect

  synonym	accompaniment
  derivation	complementalcomplementary
  hypernym	adjunct

• either of two parts that mutually complete each other

  derivation	complemental
  hypernym	counterpartopposite numbervis-a-vis

• a word or phrase used to complete a grammatical construction

  hypernym

  constructionexpressiongrammatical construction

• number needed to make up a whole force

  synonym	full complement
  derivation	complemental
  hypernym	handsmanpowermenwork forceworkforce
  hyponym	companyship's company

• a complete number or quantity

  hypernym

  count

• one of a series of enzymes in the blood serum that are part of the immune response

  holo part	immune reactionimmune responseimmunologic response
  hypernym	enzyme

• make complete or perfect; supply what is wanting or form the complement to

  hypernym

  balanceequilibrateequilibriseequilibrize