lengthwise
1. [ adverb ] in the direction of the length
Synonyms: longwise longways longitudinally lengthways
Examples:

"He cut the paper lengthwise"

Related terms: longitudinal longitudinal
2. [ adjective ] running or extending in the direction of the length of a thing
Synonyms: lengthways
Examples:

"the lengthwise dimension"

Related terms: crosswise fore-and-aft longitudinal end-to-end linear axial
Similar spelling:   lengthways
  lengthen
  lengthened
  lengthy
  lengthiness
  lengthening
  lengthily