A ‣ Verbs denoting volume: from quiet to loud
Mumble and mutter are both usually negative: Stop mumbling! I can’t hear what you’re saying.
He was muttering something under his breath – probably complaining, as usual.
Murmur can be more positive: They murmured their approval when he told them the plan.
The phrase without a murmur means without any protest, complaint or comment:
They accepted it all without a murmur. I was surprised; normally they argue about everything.
Raise your voice can be used in positive or negative contexts:
You’ll have to raise your voice a bit. She’s a little hard of hearing. [speak louder]
Don’t you raise your voice at me! [Do not speak in that loud, angry tone.]
Shout, yell, scream, roar and shriek are all followed by at: Don’t shout at me!
Yell often conveys urgency, anger, frustration; it is also used when there is much surrounding noise:
He yelled at the children to stop messing around with his computer.
‘Stay where you are!’ he yelled above the noise of the traffic.
Shriek means loud and very high-pitched. It can be used in positive and negative contexts:
‘Oh, wow! That’s fantastic!’ she shrieked.
Roar suggests very loud volume, but deeper-pitched, like a lion. It is used in positive and negative contexts:
The crowd roared as he kicked the ball into the back of the net.
‘How dare you come in here!’ he roared angrily.
B ‣ Verbs describing speech and styles of conversation 
Tom and Lily are always nagging (at) each other. [criticising faults or duties not done]
Stop bickering over who sits by the window, you two! [arguing in an irritated way usually about something petty; synonym = squabble]
They spent all evening slagging off their colleagues. [criticising in an insulting way; very informal]
Jessie is always whining and whingeing. [complaining in an annoying way; informal, negative]
He’s been chatting away on the phone all morning. [suggests light, non-serious talk; note how away is used to emphasise continuous/extended talk]
We always gossip about work when we go out together. [talk about people, rumours, etc.]
It took him a long time to realise they were winding him up. [/ˈwaɪndɪŋ/ teasing, fooling him; informal; noun = wind-up, often used in phrase, a complete wind-up]
I realised she was buttering me up. [saying nice things because she wanted something from me; negative]
Rick tends to exaggerate his problems, so don’t take him too literally. [make something seem greater than it really is; noun = exaggeration]
Meg is inclined to generalise on the basis of her very limited experience. [make general statements about something; noun = generalisation]
C ‣ Speech and articulation problems 
example | meaning |
She speaks with a lisp. She lisps: she says ‘thing’ instead of ‘sing’. | difficulty in making an ‘s’ sound and making a ‘th’ sound instead |
He hates speaking in front of people because he’s got a really bad stammer. | speak with abnormal pauses and repetitions |
‘I want to t-t-t-tell you something,’ she stuttered nervously. | repeat sounds at the beginning of words |
He was slurring his words because he had drunk far too much alcohol. | his words had a slow, lazy sound, difficult to understand |
I want to tell her I love her, but I get tongue-tied. | cannot say what I want to say because of nerves, i.e. emotional rather than physical problem affecting speech |