This is a term we use a lot because almost all houseplants can rock this type of lighting. This Is light that is bright, of course, but not blazing on your plant all day. If you hold your hand up and it casts a very sharp shadow, you're probably dealing with direct light. If the shadow is a little softer, you're probably in the indirect zone.
Examples of bright indirect light: A southern window and your plants are a few feet back from sun, an east facing window which gets a little direct in the morning and fades as the day goes by, a west facing window which has a mellow light in the morning and nice bright afternoon sunshine.