The Chinese word "特效" is formed by combining the character "特" (tè), which means "special" or "particular", with the character "效" (xiào), which means "effect" or "efficacy". The resulting compound word literally signifies "special effect", where "特" modifies "效" to specify an effect that is distinct, powerful, or uniquely potent, commonly referring to visual effects in media or heightened effectiveness in medical treatments.