Today's Word of the Day means...
sibilant sib·i·lant (sĭb'ə-lənt)
Of, characterized by, or producing a hissing sound like that of (s) or (sh).
in phonetics, a fricative consonant sound, in which the tip, or blade, of the tongue is brought near the roof of the mouth and air is pushed past the tongue to make a hissing sound. In English s, z, sh, and zh (the sound of the s in "pleasure") are sibilants. Sometimes the affricates ch and j are also considered as sibilants. See also fricative.