| Share | Phrase |
| 52.17% | one-way [direction] valve |
| 25.00% | one-way [direction] clutch |
| 4.08% | one-way [direction] means |
| 1.38% | one-way [direction] flow |
| 1.32% | one-way [direction] coupling |
| 1.17% | one-way [direction] seal |
| 1.10% | one-way [direction] unit |
| 0.99% | one-way [direction] position |
| 0.84% | one-way [direction] characteristic |
| 0.82% | one-way [direction] mechanism |
| 0.73% | one-way [direction] restrictor |
| 0.72% | one-way [direction] switch |
| 0.68% | one-way [direction] assembly |
| 0.60% | one-way [direction] brake |
| 0.57% | one-way [direction] device |
| 0.54% | one-way [direction] communication |
| 0.53% | one-way [direction] mode |
| 0.50% | one-way [direction] function |
| 0.49% | one-way [direction] passage |
| 0.47% | one-way [direction] stop |
| 0.38% | one-way [direction] connector |
| 0.37% | one-way [direction] member |
| 0.37% | one-way [direction] support |
| 0.36% | one-way [direction] action |
| 0.34% | one-way [direction] connection |
| 0.34% | one-way [direction] opening |
| 0.33% | one-way [direction] clamp |
| 0.33% | one-way [direction] spring |
| 0.31% | one-way [direction] orifice |
| 0.30% | one-way [direction] fitting |
| 0.29% | one-way [direction] drive |
| 0.22% | one-way [direction] inlet |
| 0.22% | one-way [direction] arrangement |
| 0.22% | one-way [direction] roller |
| 0.19% | one-way [direction] body |
| 0.19% | one-way [direction] wheel |
| 0.18% | one-way [direction] portion |
| 0.14% | one-way [direction] path |
| 0.04% | only [degree] one-way |