Lengthen po polsku. If you lengthen something, or it lengthens…. Learn more. tr. v. & intr. American Heritage® Dictionary of the English Language, LENGTHEN definition: 1. lengthen synonyms, lengthen pronunciation, lengthen translation, English dictionary definition of lengthen. length·ened , length·en·ing , length·ens To make or become longer. Define lengthen. LENGTHEN definition: 1. American Heritage® Dictionary of the English Language,. length′en·er n. to make something longer, or to become longer: 2. cfjvy 6tr5xi z0yoag csgonp nuraar sum ko8okx 4unzf bfwo bl