1. An expression used to emphasize or reinforce a previous statement, indicating that something applies even more strongly or to a greater degree
He is talented, and even more so when it comes to music.
Ele é talentoso, ainda que mais quando se trata de música.
2. Used to add emphasis or strengthen an argument by suggesting something is true to an even greater extent
She was already impressive, and all the more so given her youth.
Ela já era impressionante, ainda que mais considerando sua juventude.