lengthen
verb (used with object)
to make longer; make greater in length.
has lengthened
-
present perfectof lengthen (3rd person singular).present perfect
Used to describe actions that started in the past and continue into or have direct relevance to the present.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
A new NASA-led study now finds that although the melt season has lengthened dramatically since satellite monitoring began, its average duration has changed relatively little since about 2010.
From Science Daily ● Sep. 23, 2026
And as mosquito season has lengthened in recent years amid warming temperatures, some of the bloodsuckers now stick around until December in parts of the Southland.
From Los Angeles Times ● May 20, 2025
“Needing to understand the unique scope of this project has lengthened the decision-making process for NSF,” an agency spokesperson acknowledges.
From Science Magazine ● May 24, 2024
And the growing season has lengthened by about 20 days.
From Seattle Times ● Aug. 19, 2023
After traveling a certain distance, the wave has lengthened to molecular wave type, but is now beyond the machine which generated it, and no longer affects it, or damages it.
From Invaders from the Infinite by John Wood Campbell
