https://blog.inkforall.com/tone-words tone examples, the formality of tone is the use of contractions, words like we've, I'd, they're, and it's. Notice how the use of contractions changes the tone of the following sentence from a formal to an informal tone the formality of tone is the use of simple forms of speech, such as the slang we might use in an email conversation. The tone or quality of feeling, conveyed by a word can range according to its general meaning. https://speakerdeck.com/johny