WS

WS is a common, in game abbreviation. It's meaning may differ, based on the context in which it is used.
*In battle situations, WS usually refers to Weapon Skills.
:For example: "Which WS should we use to MB blizz?"
*In situations where RNG or BST are one's main or sub job, WS usually refers to Wide Scan.
:For example: "Shikigami's window is open, please WS now."