It usually means that whatever is being talked about was either not in existence or not known about before. For example: Brand new information If you think about a news station updating people on a particularly important story, maybe a big fire or a shooting, brand new information could be that they just saved someone from the fire but the fire itself is not brand new. You can also say an object is "Brand New" For example: You gave your Mom or Dad brand new shoes (nobody has worn them before) for their birthday. You just got a brand new car (nobody has driven it before)

Hi Mari, "Brand new" means that something is "really new" (it just is emphasizing that something is new.)