The word "prolong" in English means: To make something last longer., To extend the duration of something, often unnecessarily..
The phonetic transcription of "prolong" is /prəˈlɒŋ/ in British English and /prəˈlɔːŋ/ in American English. Click the 🔊 button to hear both pronunciations.
Synonyms for "prolong": extend, lengthen, continue, increase, stretch, drag out.
Example usage of "prolong": "We want to prolong our trip by a week.". More examples on the page.