lengthen is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Verb

(transitive) To make longer, to extend the length of.
• You need to lengthen the story if you want to have it published.
(intransitive) To become longer.
• The shadows on the lawn lengthened as the sun began to set.

lengthen is a Scrabble valid word

lengthen

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

lengthen is an iScramble, QuickWords valid word

lengthen

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• none

Same letters plus one

• ENLIGHTEN
• LENGTHENS
• LENGTHMEN

Same letters minus one

• none