The word 'Dhamma' can used in many contexts.

The law of nature.

Everything that exists.

Everything that exists, seen as it is.

The way of seeing everything that exists, as it is.

The path that needs to be followed to achieve a way of seeing everything that exists, as it is.

The results of following that path.

The teachings that help us to follow that path.

The teachings that come from others who have followed that path.

The teachings that nature provides.

Is-ness.

That which is contained.