1. (

• sibilant ,
• sibilant_consonant

) a consonant characterized by a hissing sound (like s or sh) ;

1. (

• fricative ,
• continuant ,
• sibilant ,
• spirant ,
• strident

) of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then') ;