'Form' in the Bible

The other cherub was ten cubits; both the cherubim were of the same measure and the same form.

Now he made the sea of cast metal ten cubits from brim to brim, circular in form, and its height was five cubits, and thirty cubits in circumference.

On the top of the stand there was a circular form half a cubit high, and on the top of the stand its stays and its borders were part of it.

He made the ten stands like this: all of them had one casting, one measure and one form.