| mutter(verb, go, deliver, low, express) |
| murmur(noun, verb, go, disorder, sound) |
| whisper(noun, verb, go, information, express) |
| maunder(verb, wander, inarticulately) |
| undertone(noun, low, hint, suggestion, trace) |
| mussitate |
| stutter(verb, utter, flow, purr, babble) |
| gum(noun, verb) |
| gabble |
| gibber(verb, babble, stammering) |
| rumble(noun, verb, utter, buzz, babble) |
| stammer(verb, utter, flow, stumble, babble) |
| utter(verb, express, talk, flow, articulate) |
| talk(verb, express, articulate, chatter, voice) |
| verbalize(verb, express, talk, utter, flow) |
| splutter(verb, stammering, stammer) |
| chew(verb, food, go, talk, convey) |
| drawl(go, talk, convey, chatter, chat) |
| garble(noun, verb) |
| jabber(verb, talk, stammering, trivially) |