siffle

Borrowed from French siffler, from Latin sibilāre. Doublet of sibilate.

siffle (plural siffles)

1. A sibilant rale.

siffle (third-person singular simple present siffles, present participle siffling, simple past and past participle siffled)

1. (intransitive) To whistle or hiss.

siffle

1. first-person singular present indicative of siffler
2. third-person singular present indicative of siffler
3. first-person singular present subjunctive of siffler
4. third-person singular present subjunctive of siffler
5. second-person singular imperative of siffler