basic, simple
The children cut the paper into various simple shapes.

overall
characteristic, distinctive, familiar, unique
I recognized the distinctive shape of a 747.

natural, normal
interesting, strange, unusual, weird
awkward
The desk was an awkward shape and wouldn't fit through the door.

original
geometric, geometrical
regular, symmetrical
complex
asymmetrical, irregular
abstract
odd, random
tiles of random shape

solid, three-dimensional
aerodynamic
organic
She drew inspiration from organic shapes in the surrounding landscape.

desired
Draw the desired shape onto white paper,

angular, circular, cone, conical, crescent, curved, cylindrical, diamond, dome, elliptical, elongated, hexagonal, oblong, oval, pyramid, rectangular, round, spherical, square, triangular, wedge
rounded, smooth
egg, heart, hourglass, pear, star, etc.
The bruise was a sort of mushroom shape.

L, V, etc.
The road forms an L shape.

blurred, ghostly, indistinct, shadowy, vague
huge, large, massive
black, dark, grey/gray
human
body
You can't change your natural body shape.

face, facial
Opt for a hairstyle to suit your face shape.

cut out, draw, make, trace
Fold the paper to make the shape of a cone.
First draw the rough shape of your chosen animal.

carve sth in, carve sth into, cut sth into, make sth in, produce sth in
a log carved into the shape of a fish
a cheese similar to Brie but produced in a different shape

come in, have
Tables come in various shapes.

assume, form, make, take on
Ordinary things assumed different shapes in the mist.

hold, keep, maintain, retain
These garments will retain their shape even with repeated washing.

regain
change
lose
distort
The lens distorts shapes.

distinguish, make out, see
I could just make out the shapes of animals in the field.

appear, emerge, loom
Ghostly shapes loomed out of the fog.

shape for
the optimum shape for a plane

in the shape of
a doormat in the shape of a cat

all shapes and sizes
T-shirts come in all shapes and sizes.
People of all shapes and sizes work for our company.

circular, hexagonal, oblong, rectangular, etc. in shape
The island is roughly circular in shape.

general, overall
changing
final
future

alter, change, determine, influence
He did much to determine the shape of Asia's political map.

take
A wonderful idea began to take shape in her brain.

give
the words we use to give a shape to our feelings

the shape of things to come
This new system could be the shape of things to come.

in any shape or form (esp. BrE)
I can't stand insects in any shape or form.

decent, excellent, fine, good, great
perfect, tip-top, top (esp. AmE)
bad, poor, rough (esp. AmE), terrible
After the night before, he was in rough shape.

physical
He's 64, but he's in better physical shape than I am.

financial
The company is in good financial shape.

shape for
to be in good shape for combat

get sb/sth into shape, knock sb/sth into shape (esp. BrE), lick sb/sth into shape (BrE), whip sb/sth into shape (esp. AmE)
Get your body into shape for the summer!
Leave the boy with me—I'll soon knock him into shape!

be in good, excellent, etc. shape
You are in pretty good shape for your age.

get in shape, get into shape
I need to get back into shape after the Christmas holiday.

keep in shape, stay in shape
She likes to stay in shape.

be out of shape