1. WSS - Noun
2. WSS - Proper noun
(computing) Initialism of Web Security Service.
(computing) Initialism of Windows Search Service.
(computing) Initialism of Windows Server System.
(computing) Windows SharePoint Services, former name of Microsoft SharePoint Foundation
(computing) Initialism of Windows Storage Server.
(computing) Initialism of Windows Sound System.
(computing) Initialism of WS-Security. (meaning Web Services Security)
(electronics) Initialism of Wavelength Selective Switching.
WSS (uncountable)
(electronics) Initialism of Widescreen signaling.