Definify.com
Webster 1913 Edition
Sibilate
Sib′i-late
,Verb.
T.
& I.
To pronounce with a hissing sound, like that of the letter s; to mark with a character indicating such pronunciation.
Definition 2024
sibilate
sibilate
English
Verb
sibilate (third-person singular simple present sibilates, present participle sibilating, simple past and past participle sibilated)