SaD and SanID are identical in meaning. They are described in TKD as "special number-forming elements", that is suffixes. However it seems possible to use them own their own.
|tlhIngan Hol / Klingon||mI'||DIvI' Hol / English|
|-SaD / -SanID||1,000||thousand|
tlhoS rap mu'meyvam