- To extend in space or length; as, to prolong a line. - To lengthen in time; to extend the duration of; to draw
out; to continue; as, to prolong one's days. - To put off to a distant time; to postpone.
Meaning of 'prolong' (Princeton's WordNet)
1 . prolong
[ v]
Meaning (1): - lengthen or extend in duration or space
Example in sentence:
keep up the good work;
prolong the treatment of the patient;
We sustained the diplomatic negotiations as long as possible
Meaning (2): - lengthen in time; cause to be or last longer