prolong
//prəˈlɒŋ//
Verb
prolongInfinitive
prolongPresent tense
prolongedPast tense
prolongedPast participle
prolongingPresent participle
prolongsThird-person singular
1
To extend the duration of something; to make something last longer.
The doctor recommended treatments to prolong his life.
2
To lengthen in extent or space; to stretch out.
The architect decided to prolong the corridor to connect the two buildings.