| Réponse | Nombre de lettres |
|---|---|
| OBJECTIVISTE | 12 lettres |
| OBJURGATIONS | 12 lettres |
| OBLIGATOIRES | 12 lettres |
| OBLIGEAMMENT | 12 lettres |
| OBLITERATION | 12 lettres |
| OBNUBILATION | 12 lettres |
| OBSECRATIONS | 12 lettres |
| OBSEQUIEUSES | 12 lettres |
| OBSEQUIOSITE | 12 lettres |
| OBSERVANTINE | 12 lettres |
| OBSERVATIONS | 12 lettres |
| OBSERVATOIRE | 12 lettres |
| OBSESSIONNEL | 12 lettres |
| OBSOLESCENCE | 12 lettres |
| OBSOLESCENTE | 12 lettres |
| OBSTETRICIEN | 12 lettres |
| OBSTRUCTIONS | 12 lettres |
| OBTEMPERIONS | 12 lettres |
| OCCASIONNELS | 12 lettres |
| OCCIDENTALES | 12 lettres |
| OCCULTERIONS | 12 lettres |
| OCEANOLOGUES | 12 lettres |
| OCTOGENAIRES | 12 lettres |
| ODORIFERANTE | 12 lettres |
| OECUMENICITE | 12 lettres |
| OEDEMATEUSES | 12 lettres |
| OEILSDEBOEUF | 12 lettres |
| OENOTHERACEE | 12 lettres |
| OESOPHAGIENS | 12 lettres |
| OFFICIALISER | 12 lettres |
| OISEAUMOUCHE | 12 lettres |
| OISEAUXLYRES | 12 lettres |
| OLEAGINEUSES | 12 lettres |
| OLIGOELEMENT | 12 lettres |
| OLIGOPHRENIE | 12 lettres |
| OMNIPRESENCE | 12 lettres |
| ONAGRARIACEE | 12 lettres |
| OPALESCENTES | 12 lettres |
| OPERACOMIQUE | 12 lettres |
| OPERATIONNEL | 12 lettres |
| OPPORTUNISME | 12 lettres |
| OPTIONNELLES | 12 lettres |
| ORANGSOUTANS | 12 lettres |
| OREILLEDEMER | 12 lettres |
| ORGANIGRAMME | 12 lettres |
| ORGANISATEUR | 12 lettres |
| ORGANISATION | 12 lettres |
| ORGUEILLEUSE | 12 lettres |
| ORIENTATIONS | 12 lettres |
| ORIENTATRICE | 12 lettres |