0 the word or phrase that is exactly right in a particular situation
Though it is primarily an art of words, literature does not entirely rely on the mot juste.
His wit, recall for the mot juste, the appropriate data set, names and references continued to sparkle undiminished.
The hour grows a little late and the mot juste probably escaped me.
To the best of my knowledge, it was the "mot juste".
Every word is the proverbial mot juste.
Flaubert believed in, and pursued, the principle of finding "le mot juste" (the right word), which he considered as the key means to achieve quality in literary art.