The base word for lengthen is long > length > lengthen
long
long
Lengthen is a verb.
Verb
I lengthened my report by adding more adjectives to it.
The verb of long is lengthen. As in "to lengthen something".
there no base word its just one word Poem is this a base word
Lengthen is a verb.
Stretching the rubber band would lengthen it. It is the sentence containing the lengthen word.
The noun forms for the verb to lengthen are lengthener and the gerund, lengthening.The word lengthen is the verb form of the noun length.
lengthen
Verb
slowing
elongate
Expand Grow
as long and stretchy for height horizontally
It is divided into length-en.
To extend or to lengthen
If you want to lengthen your sentence, say, "Would you please use the word, "lengthen" in a sentence? (Check spelling, too)