シンクタンクalso: シンク・タンクシンクタンクCommon wordFreq.FrequencyTop 50,000Meanings1nounthink tankA research institute or organization that provides advice and ideas on political, economic, or social issues.そのシンクタンクは政せい策さく提てい言げんで知しられている。That think tank is known for its policy recommendations.