What does "lengthwise" mean?

In the long direction of an oblong object.

What is a synonym for "lengthwise"?

Common synonyms include: lengthways, along, along-length, at full length, at length, axial.

adj, adv

adj, adv ·2 syllables ·Uncommon ·Advanced level

Adjective

1
In the long direction of an oblong object. not-comparable
"A lengthwise cut is difficult to saw with hand tools."

Adjective

Adverb

1
In the long direction of an oblong object. not-comparable
"Cutting a string bean lengthwise is hard because they are so narrow."

Adverb

"Cut 1/3 off each potato lengthwise. Scoop flesh from each potato to within about 1/8 inch of the skins. Transfer flesh to a bowl."

From length + -wise.