What is the meaning of Toch?

to touch

still, nevertheless, anyway

still, nevertheless, anyway

after all, despite what was expected

yes, surely; implies a positive contradiction, used to contradict a negative.

In positive statements, a modal particle indicating certainty or emphasis, implying that the speaker considers his statement to be obvious.

In questions, a modal particle indicating uncertainty or sometimes worry, implying that the speaker hopes to be confirmed or reassured; may also be postpositioned as a tag question.; right? is that so?

Source: wiktionary.org