| undersea wave | 3.23 | Tsunami are undersea waves triggered by volcanic activity or earthquakes. | ||
| undersea disturbance | 2.57 | Tsunamis are giant waves triggered by undersea disturbances. | ||
| undersea earthquake | 2.44 | A moderate undersea earthquake shook southern Greece near the port of Patras Sunday. | ||
| undersea cable | 2.24 | The electricity will be transmitted by undersea cables. | ||
| undersea pipeline | 0.79 | ...an undersea pipeline running to Europe. | ||
| undersea robot | 0.46 | The military still uses undersea robots, but most of the uses are hush-hush. | ||
| undersea test | 0.46 | The latest undersea test was on Thursday. | ||
| undersea tunnel | 0.46 | Man dodges security, trains in undersea tunnel. | ||
| undersea volcano | 0.46 | Scientists track erupting undersea volcano off Oregon coast. | ||
| undersea activity | 0.39 | As the undersea activity increased, Tokyo and local authorities readied evacuation and assistance plans. | ||
| undersea quake | 0.39 | There was no fear of a tsunami from the undersea quake, the agency said. | ||
| undersea environment | 0.33 | The science-fiction writer warned that scuba divers are ruining the undersea environment. | ||
| undersea explorer | 0.33 | A great pick for budding marine biologists and undersea explorers. | ||
| undersea fiber | 0.33 | Winnick envisioned a telecommunications empire with undersea fiber optic cables that would become a worldwide network to transmit information via the Internet. | ||
| undersea world | 0.33 | The undersea world, with snorkeling at most hotel beaches, is spectacular. | ||
| undersea adventure | 0.26 | Eco the Dolphin allows you to control a cetacean in a beautiful undersea adventure. | ||
| undersea eruption | 0.26 | The agency also said an undersea volcanic eruption was unlikely. | ||
| undersea exploration | 0.26 | ...undersea exploration. | ||
| undersea link | 0.26 | The undersea link was formally inaugurated in May. | ||
| undersea research | 0.26 | They are conducting undersea research. |