1. to make or become longer in distance, time, or duration
Usage: third person singular present tense of ‘lengthen’

Examples

• The shadow lengthens as the sun sets.
• She lengthens her stride to keep up with him.
• The days lengthen in spring.
• The tailor lengthens the pants by two inches.
• Exercise lengthens your lifespan.
• The meeting lengthens when new issues arise.
• Heat lengthens the metal rod.