ゴムボートFreq.FrequencyTop 100,000Meanings1nounrubber raft; inflatable boatA small boat made of rubber or similar material, often inflatable, used for recreation or emergencies.See also: ゴム川かわ下くだりにゴムボートを使つかった。We used a rubber raft for going down the river.緊きん急きゅう用ようにゴムボートを常じょう備びしている。We keep an inflatable boat on hand for emergencies.