extend, lengthen, prolong, protract mean to draw out or add to so as to increase in length. extend and lengthen imply a drawing out in space or time but extend may also imply increase in width, scope, …

LENGTHEN definition: 1. to make something longer, or to become longer: 2. If you lengthen something, or it lengthens…. Learn more.

1. in detail; taking a long time.

Definition of lengthen verb in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

To lengthen is to make longer, either in a material or an immaterial sense: to lengthen a dress. To extend is to lengthen beyond some original point or so as to reach a certain point: to extend a railway …

Apr 19, 2026 · lengthen (third-person singular simple present lengthens, present participle lengthening, simple past and past participle lengthened) (transitive) To make longer, to extend the length of.

lengthen, v. meanings, etymology, pronunciation and more in the Oxford English Dictionary

LENGTHEN definition: to make longer; make greater in length. See examples of lengthen used in a sentence.

To lengthen means to make something longer in physical distance or time duration. It could involve extending, stretching or elongating something, or increasing the amount of time something lasts or …

Lengthen definition: To make or become longer.