Fine brunoise (pronounced "broon-wahz") is a basic culinary arts knife cut which is essentially a tiny cube measuring 1/16 inch × 1/16 inch × 1/16 inch. It's produced by first creating a fine julienne and then cutting it into cubes.
Watch Now: How to Fine Brunoise
For pictures of the basic knife cuts, see this Knife Cuts Photo Gallery.
You can read more about each of the basic knife cuts via the links below: