A tectonic boundary is where two tectonic plates meet, depending on how they meet and move, that could cause some compression stress.
The answer to your question is Convergent.
Compression happens when you push two things against each others, when they converge towards each other.
When they are divergent, they are moving away from each other, thus releasing the tension/compression between the two.
Transform and Dip-slip are lateral movements... like for example along two sides of the road... one is moving East, the other West, they rub each other but don't really increase the pressure between them.