gerund
The act of making something longer.
Lengthening the contract by one year gave the company more time.
Lengthening the meeting would make it harder for everyone to get home.
American English
How to pronounce lengthening
noun · adjectiveB2
LEHNGthuhnihng
/ˈlɛŋ.θə.nɪŋ/
3 syllables · Stress the first syllable.
Form of lengthen
The act of making something longer.
Practice out loudMeanings & examples
present-participle adjective
Becoming longer over time.
The lengthening days are a sign that summer is near.
We watched the lengthening shadows move across the yard.