Dictionary

prolong

verb pro·long \prə-ˈlŋ\

: to make (something) last or continue for a longer time

Full Definition of PROLONG

transitive verb
1
:  to lengthen in time :  continue
2
:  to lengthen in extent, scope, or range
pro·lon·ga·tion \(ˌ)prō-ˌlŋ-ˈgā-shən, prə-\ noun
pro·long·er \prə-ˈlŋ-ər\ noun

Examples of PROLONG

  1. Additives are used to prolong the shelf life of packaged food.
  2. High interest rates were prolonging the recession.

Origin of PROLONG

Middle English, from Middle French prolonguer, from Late Latin prolongare, from Latin pro- forward + longus long
First Known Use: 15th century

Synonym Discussion of PROLONG

extend, lengthen, prolong, protract mean to draw out or add to so as to increase in length. extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, area, or range <extend a vacation> <extend welfare services> <lengthen a skirt> <lengthen the workweek>. prolong suggests chiefly increase in duration especially beyond usual limits <prolonged illness>. protract adds to prolong implications of needlessness, vexation, or indefiniteness <protracted litigation>.
PROLONGATION Defined for Kids

prolong

verb pro·long \prə-ˈlŋ\
pro·longedpro·long·ing

Definition of PROLONG for Kids

:  to make longer than usual or expected <Medicines prolonged his life.>

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