底力: underlying strength

(music) clipping of シンセサイザー (shinsesaizā): synth, synthesizer

(historical) the Chinese state of Jin (c. 11th century–376 BCE) during the Zhou dynasty / the 西晋 (Seishin, “Western Jin”, 266–316 CE) / the 東晋 (Tōshin, “Eastern Jin”, 317–420 CE)

Used other than figuratively or idiomatically: see かき, たね: persimmon seed / kaki no tane, a seed-shaped senbei