Speech transmission index (Speech intelligibility index), a way to measure the understandability of speech for a listener in different conditions (noise, hearing loss, etc.)
Samsung Galaxy S II, or Samsung Galaxy S2, the successor to the Samsung Galaxy S
Solvency II, a European directive to harmonise insurance regulation
Topics referred to by the same term
This disambiguation page lists articles associated with the title SII. If an internal link led you here, you may wish to change the link to point directly to the intended article.