To extend one's muscles or limbs, as after prolonged sitting or on awakening.
To depart to, or be at, a distance; especially, to recede apparently from the sun, as a planet in its orbit.
To extend; to protrude.
To stretch out
To make wider or larger; cause to expand or swell; stretch
To make larger or more powerful; increase.
To move along or be carried on
To carry farther; extend
To make longer
To cause to become greater in size, amount, degree, etc.; add to; augment
Expand is defined as to increase in size, unfold or spread out.
To make (a quantity) smaller.
To enter upon, or undertake, by contract
To increase in size by a natural process.
To make (a supply) last by practicing strict economy. Used with out.
To reduce (a word or phrase) to a shorter form intended to represent the full form.
For or throughout a specified period:
Find another word for lengthen. In this page you can discover 31 synonyms, antonyms, idiomatic expressions, and related words for lengthen, like: extend, stretch, reach, elongate, protract, prolongate, prolong, distend, dilate, amplify and draw out.