| Ontologist's concern | 24 |
| Onto, with "of" | 25 |
| Onto, with ''of'' | 33 |
| Onto, in jive talk | 18 |
| Onto the sand | 13 |
| Onto the jive | 13 |
| Onto the beach | 14 |
| Onto land | 9 |
| Onto | 4 |
| OntarioÂ’s Sault ___ Marie | 29 |
| Ontario-Quebec border river | 27 |
| Ontario-Huron link | 18 |
| Ontario-born hockey legend Bobby | 32 |
| Ontario-born hockey legend | 26 |
| Ontario, par exemple | 20 |
| Ontario, for one | 16 |
| Ontario, for example | 20 |
| Ontario, e.g. | 13 |
| Ontario, abbr. | 14 |
| Ontario's ______canal | 25 |
| Ontario's ______ Canal | 27 |
| Ontario's _____Demeter | 26 |
| Ontario's _____Bernardo | 27 |
| Ontario's _____ Lake | 24 |
| Ontario's _____ Hill | 24 |
| Ontario's _____ Dick | 24 |
| Ontario's _____ Carl Roy | 29 |
| Ontario's ____Centre | 24 |
| Ontario's ____ locks | 24 |
| Ontario's ____ Hill | 23 |
| Ontario's ___ Locks | 23 |
| Ontario's ___ Canals | 24 |
| Ontario's ___ Canal | 23 |
| Ontario's __ Tower | 22 |
| Ontario's tree | 18 |
| Ontario's St. Lawrence______ | 32 |
| Ontario's Shania ____ | 25 |
| Ontario's second-largest city | 33 |
| Ontario's second most populous city | 39 |
| Ontario's Sault ___ Marie | 29 |
| Ontario's Red _____ | 23 |
| Ontario's provincial bird | 29 |
| Ontario's Premier Ernie | 27 |
| Ontario's Premier David | 27 |
| Ontario's Old ___ William | 29 |
| Ontario's official bird | 27 |
| Ontario's neighbor | 22 |
| Ontario's Michelle ______ | 29 |
| Ontario's Little _____ | 26 |
| Ontario's Fort ___ | 22 |
| Ontario's flower | 20 |
| Ontario's capital, on sports tickers | 40 |
| Ontario's capital, on scoreboards | 37 |
| Ontario's capital, on a scoreboard | 38 |
| Ontario's capital on a sports ticker, | 41 |
| Ontario's capital | 21 |
| Ontario's bird | 18 |
| Ontario's 23rd Premier | 26 |
| Ontario's 21st premier | 26 |
| Ontario village and Turkish namesake | 37 |
| Ontario village | 15 |
| Ontario valley | 14 |
| Ontario TV network | 18 |
| Ontario tribesmen | 17 |
| Ontario tribe | 13 |
| Ontario town, or entertainer Cohen | 34 |
| Ontario town, or a Taurus between a Mustang and a Cougar? | 57 |
| Ontario town whose sign boasts a giant mosquito | 47 |
| Ontario town whose sign boasts a giant elephant | 47 |
| Ontario town or politician Manning | 34 |
| Ontario town or actress Hilton | 30 |
| Ontario town and British namesake | 33 |
| Ontario town and French namesake | 33 |
| Ontario town | 12 |
| Ontario sports org. | 19 |
| Ontario river to James Bay | 26 |
| Ontario river | 13 |
| Ontario raceway | 15 |
| Ontario Premier, once | 21 |
| Ontario Premier, formerly | 25 |
| Ontario Premier Leslie | 22 |
| Ontario Premier John | 20 |
| Ontario Premier George | 22 |
| Ontario Premier Frank | 21 |
| Ontario Premier Bob | 19 |
| Ontario Premier Bill | 20 |
| Ontario Premier | 15 |
| Ontario port opposite Port Huron, Mich. | 39 |
| Ontario Port | 12 |
| Ontario politician Bob ___ | 26 |
| Ontario Park, Fort ______ | 26 |
| Ontario or Supérieur | 23 |
| Ontario or Michigan | 19 |
| Ontario network | 15 |
| Ontario neighbour | 17 |
| Ontario neighbor | 16 |
| Ontario natives | 15 |
| Ontario native | 14 |
| Ontario metropolis | 18 |
| Ontario lake | 12 |