WordRel.com

• the act of making something different (as e.g. the size of a garment)

  synonym	alterationmodification
  derivation	adjust
  hypernym	change
  hyponym	accommodationadaptationlaxationlooseningtighteningtune

• the act of adjusting something to match a standard

  synonym	readjustmentregistration
  derivation	adjust
  hypernym	calibrationstandardisationstandardization
  hyponym	alignmentcollimationsynchronisationsynchronisingsynchronizationsynchronizingtemperamenttune-upvoicing

• making or becoming suitable; adjusting to circumstances

  synonym	accommodationfitting
  derivation	adjust
  hypernym	advancebettermentimprovement
  hyponym	domesticationhabituationreadjustmentshakedown

• an amount added or deducted on the basis of qualifying circumstances

  synonym	allowance
  derivation	adjust
  hypernym	recompense
  hyponym	cost-of-living allowancedeductiondepreciation allowancediscountextra duty allowanceextraneous duty allowanceseasonal adjustmentspecial duty allowancetare

• the process of adapting to something (such as environmental conditions)

  synonym	adaptationadaption
  derivation	adjust
  hypernym	biological processorganic process
  hyponym	acclimationacclimatisationacclimatizationdedifferentiationdifferentiationdomesticationspecialisationspecialization