pilot project

noun 0.828

pilot plant

noun 0.636

trial run

noun 0.617

trial balloon

noun 0.577

piloting

noun 0.576

pilot balloon

noun 0.558

group scheme

noun 0.558

scheme

noun 0.552

pilot hole

noun 0.543

pilot wave

noun 0.542

pilotage

noun 0.531

trialling

noun 0.528

proof of concept

noun 0.505

pilot burner

noun 0.504