How do you say understand in Gaelic?

Answer 1

It depends.

'tuig' is to understand.

an dtuigeann tú=do you understand

tuigim=I understand

tuigeann sé= he understands

é a thuiscint= to understand it

Answer 2

In Irish Gaelic: tuigim (I understand);

in Scottish Gaelic: tha mi a' tuigsinn