just-in-timeˌjust-in-ˈtime written abbreviation JIT adjectiveadj [only before a noun]MANUFACTURING if goods are produced or bought using a just-in-time system, they are produced or bought just before they are needed, reducing the cost to the firm of keeping goods for long periods of timeThe firm is worried that delays could cause problems with their just-in-time manufacturing methods.
Many companies are now moving to just-in-time delivery of supplies.