| Relevance | Word | Links |
| 100.00% | ported | Concordance - Matched context |
| 51.34% | fluid-cooled | |
| 44.20% | brake-shoe-carrying | |
| 43.92% | liquid-cooled | Concordance - Matched context |
| 43.15% | part-spherical | Concordance - Matched context |
| 40.58% | intake-manifold | Concordance - Matched context |
| 40.46% | piston-shaft | |
| 40.46% | thermo-plastic | |
| 40.46% | thermo-retractable | |
| 38.34% | internal-combustion | Concordance - Matched context |
| 36.13% | aero | |
| 36.13% | air-breathing | |
| 36.13% | air-compressing | |
| 36.13% | alcohol-fueled | |
| 36.13% | auto-ignited | |
| 36.13% | compression-ignited | |
| 36.13% | compression-ignited internal combustion | |
| 36.13% | crank-type | |
| 36.13% | crankshaft-type | |
| 36.13% | cross-scavenged | |
| 36.13% | diesel-operated | |
| 36.13% | diesel-type | |
| 36.13% | direct-injected | |
| 36.13% | direct-injecting | |
| 36.13% | downsized | |
| 36.13% | dual-fueled | |
| 36.13% | expander-type | |
| 36.13% | four-cycle internal combustion | |
| 36.13% | four-cylindered | |
| 36.13% | fuel-consuming | |
| 36.13% | fuel-injected | |
| 36.13% | gas-coupled | |
| 36.13% | gas-fueled | |
| 36.13% | gaseous-fueled | |
| 36.13% | gasoline-burning | |
| 36.13% | gasoline-fueled | |
| 36.13% | gasoline-powered | |
| 36.13% | high-efficiency | |
| 36.13% | high-output | |
| 36.13% | high-powered | |
| 36.13% | horizontal opposed type | |
| 36.13% | horizontally-opposed | |
| 36.13% | hydrogen-fueled | |
| 36.13% | ignition-type | |
| 36.13% | injection-type | |
| 36.13% | l-head | |
| 36.13% | loop-scavenged | |
| 36.13% | low-noise | |
| 36.13% | mixture-compressing | |
| 36.13% | multi-cylinder internal combustion | |