the extent to which something is long

the amount of time taken

लम्बाई

English Usage: The length of the table is four feet.

Hindi Usage: टेबल की लम्बाई चार फीट है।

a distance measured along an object

दूरी

English Usage: He measured the length of the rope.

Hindi Usage: उसने रस्सी की दूरी मापी।

to make longer

to extend in time

समय बढ़ाना

English Usage: She wanted to lengthen the deadline for her project.

Hindi Usage: वह अपने प्रोजेक्ट की समय सीमा बढ़ाना चाहती थी।

pertaining to long duration or distance

लंबा

English Usage: It was a length event that required much stamina.

Hindi Usage: यह एक लंबा कार्यक्रम था जिसमें बहुत सारे स्टैमिना की आवश्यकता थी।