verb
to make something longer
The company lengthened the contract by one year.
Common phrases & grammar
lengthen a sentence · lengthen a skirt
American English
How to pronounce lengthens
verbB2
LEHNGthnz
/ˈlɛŋ.θn̩z/
2 syllables · Stress the first syllable.
Related entry: lengthen
to make something longer
Practice out loudMeanings & examples
verb
to become longer
The days lengthen in spring.
Common phrases & grammar
days lengthen · shadows lengthen