Origami Base Fold
In origami, there is a series of several bases that many models are created with. In general, "base" refers to any folded paper that immediately precedes final folding and shaping of the model-to-be. The ones listed below are generally accepted as the traditional origami bases.
Balloon base or waterbomb base
Bird base
Blintz base or cushion fold
Book fold
Cupboard fold
Diamond base
Fish base
Frog base
Fruit base
Kite base
Shawl fold (diaper or triangle fold)
Snail base
Square base or basic flower form ('hana-no kihon-kei' in Japanese) or preliminary fold
W-boat, (catamaran or pig form)
Windmill