| Rating | Solver | Clue |
|---|---|---|
| PURR | Low murmur | |
| CROON | A low, continued moan; a murmur. | |
| MURMUR | To utter or give forth in low or indistinct words or sounds; as, to murmur tales. | |
| GRUMBLE | To murmur or mutter with discontent; to make ill-natured complaints in a low voice and a surly manner. | |
| HUM | To make a low, prolonged sound, like that of a bee in flight; to drone; to murmur; to buzz; as, a top hums. | |
| BUZZ | A continuous, humming noise, as of bees; a confused murmur, as of general conversation in low tones, or of a general expression of surprise or approbation. | |