Definition of Prolong

extend; lengthen

Examples of Prolong in a sentence

The teacher decided to prolong the test, giving the student 15 more minutes to finish the exam.  🔊

Changing the oil in your car regularly can prolong the life of your engine by several years.  🔊

The doctor believes the cancer treatment will prolong the patient’s life and help him live longer than expected.  🔊

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