If you mean Fs (capital) then it can often mean that the size (s) of the headcollar is Full (F) full fits most large headed horses eg throughbred, stockhorses etc. The sizes go from mini,pony,cob,to full. In some cases you can also get warmblood which ids the next size up from full. Hope this helps.
FS charge
fs=fashion show
Fs can mean For Sale, Full Size. Do you mean SF? Square Footage.
It means full screen FS full screen
For sure.
For sex :)
fs may refer to sampling frequency which is the frequecy used to sample an analog signal.
FS typically means fingers stick, as in FSBS (finger stick blood sugar).
Factory Serviced
It stands for Follow Saturday.
It is usually an abbreviation for File System.
Failure by stopping from attending