fricative continuant sibilant spirant strident
fricative%5:00:00:soft:03 continuant%5:00:00:soft:03 sibilant%5:00:00:soft:03 spirant%5:00:00:soft:03 strident%5:00:00:soft:03
of speech sounds produced by forcing air through a constricted passage (as `f', `s', `z', or `th' in both `thin' and `then')