optimize UK /ˈɒptɪmaɪz/US /ˈɑptɪmaɪz/verb 4forms 3phrases 1 verb4 •To make (something) optimal.We need to optimize the supply chain to reduce costs. •To make (something) more efficient, such as a computer program.The website was redesigned to optimize user experience.He used software to optimize the performance of his computer. •To become optimal. •To act optimistically or as an optimist. formsoptimized · optimizing · optimizes Phrases with optimize optimize outTo omit (some portion of program logic) through optimization, when it is found to be unused or unnecessary.