Suicidal—sū-i-sī´dal, not sū-ĭs´i-dal. Worcester placed the principal accent on the first syllable.
Suite—sweet, not sūte. When the word suit is used, however, the latter pronunciation is correct.
Sulphurous—sŭl´phur-ŭs, not sul-phū´rŭs nor sŭl-phū´re-us. Sulphureous is another word.
Summoned, not summonsed.
Supersede, superseded, superseding. Observe the s in the penultimate. It is a common error to write supercede, etc.
Supposititious—sup-pos-i-tĭ´shus, not sup-po-sĭ´shus. Put by a trick in the place of another, as, a supposititious child, a supposititious record.
Surtout—sŭr-tōōt´, not sŭr-towt´ nor sŭr´tōōt.
Swath—swawth, not swawthe. Worcester gives swŏth. The sweep of the scythe in mowing.
Tabernacle—tăb´er-na-cle, not tăb´er-năk´cle.