The Yu-Gi-Oh! Wikia also covers the following statuses:
Legal - the card can be used in an official Duel. Since all Forbidden, Limited, Semi-Limited, and Unlimited cards are also legal, this status is reserved on the Yu-Gi-Oh! Wikia for legal cards that are not also any of the above four statuses. (This applies mainly for release Token Monsters; see the legal article for more information.)
Illegal - the card is not and never will be legal anywhere. All official illegal cards have Limitation Text present on the card, usually stating "This card cannot be used in a Duel".
Not Legal - the card is only legal in certain regions; outside of those regions, they are considered not legal (see the article for more information).
Not Yet Released - the card has a confirmed future release date. Any copies that may be leaked will be not be considered legal until then.
Not Yet Legal - the card has been officially released but will not be considered legal until some time in the future.