noun
ADJECTIVE
▪ early
▪
They created an early ~ using this software.
▪ working
▪ pre-production
VERB + PROTOTYPE
▪ build , create , develop , make , produce
▪ have
▪
We have a working ~ that is ready to demonstrate.
▪ test
PROTOTYPE + NOUN
▪ stage
▪
The car is presently at the ~ stage.
PREPOSITION
▪ ~ for
▪
The team is developing a ~ for a digital compact camera.
▪ ~ of
▪
He is working on the ~ of a new type of ventilator.