Database tables columns' names

[Anies12]

please explain the database columns' names, the names are not so clear.
For example: "TUser" is for what?

[engshorouq]

• Table users for admin details
• Table places for the places will show in list menu when select place to items
• Table orders for order detalis
• Table TUser contain the captains and customers details in same table
• Table tuser_order: the customer and captain in the same table when make relation with order table , the relation will be many-to-many because it make this table to break this relation
• Table items for the items will select for order
  @Anies12