| Common oater climax | 19 |
| Common oath | 11 |
| Common observation | 18 |
| Common observer | 15 |
| Common occasion for leaving work early: Abbr. | 45 |
| Common occurrence in Green Bay after a Packer touchdown | 55 |
| Common octagon color | 20 |
| Common office decor | 19 |
| Common office decoration | 24 |
| Common office machine | 21 |
| Common office plant | 19 |
| Common oil measurements: Abbr. | 30 |
| Common Old West nickname | 24 |
| Common Olympics chant | 21 |
| Common omelet ingredient | 24 |
| Common on-line activities | 25 |
| Common on-line activity | 23 |
| Common online activity | 22 |
| Common online quote | 19 |
| Common opening | 14 |
| Common opening bid | 18 |
| Common opening bridge bid | 25 |
| Common opening time | 19 |
| Common operator | 15 |
| Common or Christian | 19 |
| Common or Christian follower | 28 |
| Common or horse | 15 |
| Common or horse chaser | 22 |
| Common or horse end | 19 |
| Common or horse follower | 24 |
| Common or Juvenile | 18 |
| Common or non | 13 |
| Common or proper | 16 |
| Common or proper word | 21 |
| Common or proper words | 22 |
| Common or Roman | 15 |
| Common or sixth | 15 |
| Common or sixth follower | 24 |
| Common orange | 13 |
| Common order, with "the" | 34 |
| Common ore of mercury | 21 |
| Common origami creations | 24 |
| Common origami figures | 22 |
| Common Oscar gown feature | 25 |
| Common outboard motor spec | 26 |
| Common outdoor waiting area | 27 |
| Common overseas toast | 21 |
| Common packaging word | 21 |
| Common pain soother | 19 |
| Common pair | 11 |
| Common pair? | 12 |
| Common pairing in ads | 21 |
| Common paneling wood | 20 |
| Common papal name | 17 |
| Common paper size: Abbr. | 24 |
| Common parasite | 15 |
| Common parental "explanation" | 39 |
| Common parental exclamation | 27 |
| Common parental reiteration | 27 |
| Common park features | 20 |
| Common parrot name | 18 |
| Common part of a Happy Meal | 27 |
| Common part of Dutch surnames | 29 |
| Common party night: Abbr. | 25 |
| Common pasta ending | 19 |
| Common pasta suffix | 19 |
| Common patio sight | 18 |
| Common pay period | 17 |
| Common PBS drive thank you gift | 31 |
| Common PC | 9 |
| Common PC file extension | 24 |
| Common PC file suffix | 21 |
| Common PC log-in requirement | 28 |
| Common pc. of Latin | 19 |
| Common pee-fix? | 15 |
| Common pentad | 13 |
| Common penultimate fairy tale word | 34 |
| Common people | 13 |
| Common people (with "the") | 36 |
| Common periodical name | 22 |
| Common person | 13 |
| Common personal ad designation | 30 |
| Common pest | 11 |
| Common pesticide target | 23 |
| Common pg. size | 15 |
| Common Philip K. Dick theme | 27 |
| Common photo subject | 20 |
| Common phrase | 13 |
| Common phrase on a song sheet | 29 |
| Common picker-upper | 19 |
| Common pickup capacity | 22 |
| Common pie slice count | 22 |
| Common piece of mail | 20 |
| Common Pig Latin word | 21 |
| Common pill | 11 |
| Common pill dosage | 18 |
| Common pipe material, briefly | 29 |
| Common pizza joint owner's name | 35 |
| Common pizzeria order | 21 |
| Common place for a canal: Abbr. | 31 |