power of expression; expressiveness; expressive power
この俳優は表現力が豊かだ。
This actor is richly expressive.
子供の表現力を伸ばす教育が注目されている。
Education that develops children's expressiveness is drawing attention.
文章の表現力を高めるにはたくさん読むことが近道だ。
Reading a lot is a shortcut to improving your writing's expressiveness.