verb/sə dɔ.ne l(ə) mo/
to be in agreement, to be in concert
“Les quatre hommes s'étaient donné le mot. Chacun jouait son rôle sans se laisser surprendre par des questions plus ou moins inattendues.” — The four men had agreed on a deal. Each one would play his part and avoid being caught off guard by more or less unexpected questions. [as translated by Shaun Whiteside in Maigret and the Killer, →ISBN]
Reciprocal of donner le mot.