A ward/guard is a fighting stance as might be found in the fighting manuals of history.
Arming Sword and Buckler
Royal Armouries I.33 gives seven basic guards (termed Custodiis plus a number of others.
The Vier Leger are:
An example of the longsword guard Vom Tag is where the left foot is forward, both hands are on the hilt and they are raised to eye level with the blade pointed skywards on on the right hand side of the body.