WARBLE
11
Scrabble
13
WWF
W(4) A(1) R(1) B(3) L(1) E(1)
NWL/TWL ✓ Collins ✓ WWF ✓
Definition
noun
- The sound of one who warbles; singing with trills or modulations.
- In naval mine warfare, the process of varying the frequency of sound produced by a narrowband noisemaker to ensure that the frequency to which the mine will respond is covered.
verb
- To modulate a tone's frequency.
- To sing like a bird, especially with trills.
- To cause to quaver or vibrate.
Source: Wiktionary