| Co-star of Steve in "The Magnificent Seven" | 53 |
| Co-star of Stewart and Frakes | 29 |
| Co-star of Teri and Felicity | 28 |
| Co-star of Teri, Felicity, and Marcia | 37 |
| Co-star of Teri, Marcia and Felicity | 36 |
| Co-star of the American premiere of "Waiting for Godot" | 65 |
| Co-star of Tina, Alec and Jane | 30 |
| Co-star of Tom in "A Few Good Men" | 44 |
| Co-star of Tom in "Angels & Demons" | 49 |
| Co-star of TV's "Chuck" | 37 |
| Co-star of TV's "Dharma & Greg" | 49 |
| Co-star on TV's "Taxi" | 36 |
| Co-star with Ball, Arnaz and Frawley | 36 |
| Co-star with Betty, Rue and Estelle | 35 |
| Co-star with Bolger and Haley | 29 |
| Co-star with Caesar? | 20 |
| Co-star with Clark and Grace | 28 |
| Co-star with Courteney and Jennifer | 35 |
| Co-star with Kate and Jaclyn | 28 |
| Co-star with Moore and Asner | 28 |
| Co-tsar with Peter I | 20 |
| Co-winner of 1978 Nobel Peace Prize | 35 |
| Co-winner of 1994 Nobel Peace Prize | 35 |
| Co-winner of the first Albert Einstein Award, 1951 | 50 |
| Co-winner of the Peace Prize: 1978 | 34 |
| Co-worker for Kent and Lane | 27 |
| Co-worker of Clark | 18 |
| Co-worker of Dilbert | 20 |
| Co-worker of Homer on "The Simpsons" | 46 |
| Co-worker of Igor and Frau Blücher in "Young Frankenstein" | 71 |
| Co-worker of Kennedy starting in 2006 | 37 |
| Co-worker of Kent and Olsen | 27 |
| Co-worker of Lois and Jimmy | 27 |
| Co-worker of Woody and Diane | 28 |
| Co-worker: Abbr. | 16 |
| Co-workers of R.N.'s | 24 |
| Co-workers' gab | 19 |
| Co-writer and star of "Bridesmaids" | 45 |
| Co-writer of "The Other Woman": 1983 | 46 |
| Co-writer of "What Kind of Fool Am I?" | 48 |
| Co-writer of many Eagles hits | 29 |
| Co-writer of Michael Jackson's posthumous hit "This Is It" | 72 |
| Co-__ (condo relatives) | 23 |
| Co-__ (some apartments) | 23 |
| Co-___ | 6 |
| Co-___ (appropriates) | 21 |
| Co-___ (some apartments) | 24 |
| Co-___ (some apartments, for short) | 35 |
| Co. | 3 |
| Co. follower | 13 |
| Co. abbr. | 9 |
| Co. acquired by American Airlines in 2001 | 41 |
| Co. acquired by Delta in 2008 | 29 |
| Co. acquired by Verizon | 23 |
| Co. acquired by Verizon in 2006 | 31 |
| Co. addresses, often | 20 |
| Co. alternative | 15 |
| Co. backups | 11 |
| Co. badges | 10 |
| Co. bailed out in 2008 | 22 |
| Co. based in Vienna | 19 |
| Co. begun as a tea seller | 25 |
| Co. behind Myth War Online and GodsWar Online | 45 |
| Co. biggies | 11 |
| Co. bigwig | 10 |
| Co. bigwigs | 11 |
| Co. bought by Verizon | 21 |
| Co. brass | 9 |
| Co. busy on Valentine's Day | 31 |
| Co. called "Big Blue" | 31 |
| Co. captain | 11 |
| Co. captain? | 12 |
| Co. chiefs | 10 |
| Co. commander | 13 |
| Co. component | 13 |
| Co. concerned with the big picture | 34 |
| Co. confab | 10 |
| Co. designation | 15 |
| Co. division | 12 |
| Co. divisions | 13 |
| Co. executive | 13 |
| Co. famous for ''You've got mail'' | 54 |
| Co. featured in "You've Got Mail" | 47 |
| Co. figure | 10 |
| Co. first owned by GE | 21 |
| Co. follower | 12 |
| Co. follower, often | 19 |
| Co. for surfers | 15 |
| Co. for Web users | 17 |
| Co. formed in a 1958 merger | 27 |
| Co. founded as Western Air Express | 34 |
| Co. founded by H. Ross Perot in 1962 | 36 |
| Co. founded by J.P. Morgan | 26 |
| Co. founded by Perot | 20 |
| Co. founded by Rockefeller | 26 |
| Co. founded by Ross Perot | 25 |
| Co. founded by Steve Case | 25 |
| Co. founded by the Rockefellers | 31 |
| Co. gathering | 13 |
| Co. head | 8 |