valley fold (origami)
A basic origami fold where the paper is folded inward, creating a valley-like crease. Contrasts with 山折り (mountain fold).
See also: 山折り
The basics of origami are valley folds and mountain folds.
Please make a valley fold along the dotted line.
Standard spelling for the origami term.
Abbreviated spelling, common in origami diagrams and instructions.
Compound of 谷 (tani, 'valley') and 折り (ori, 'fold'), referring to the valley-like shape of the crease.