| Co. called "Big Blue" | 31 |
| Co. busy on Valentine's Day | 31 |
| Co. brass | 9 |
| Co. bought by Verizon | 21 |
| Co. bigwigs | 11 |
| Co. bigwig | 10 |
| Co. biggies | 11 |
| Co. behind Myth War Online and GodsWar Online | 45 |
| Co. begun as a tea seller | 25 |
| Co. based in Vienna | 19 |
| Co. bailed out in 2008 | 22 |
| Co. badges | 10 |
| Co. backups | 11 |
| Co. alternative | 15 |
| Co. addresses, often | 20 |
| Co. acquired by Verizon in 2006 | 31 |
| Co. acquired by Verizon | 23 |
| Co. acquired by Delta in 2008 | 29 |
| Co. acquired by American Airlines in 2001 | 41 |
| Co. abbr. | 9 |
| Co. follower | 13 |
| Co. | 3 |
| Co-___ (some apartments, for short) | 35 |
| Co-___ (some apartments) | 24 |
| Co-___ (appropriates) | 21 |
| Co-___ | 6 |
| Co-__ (some apartments) | 23 |
| Co-__ (condo relatives) | 23 |
| Co-writer of Michael Jackson's posthumous hit "This Is It" | 72 |
| Co-writer of many Eagles hits | 29 |
| Co-writer of "What Kind of Fool Am I?" | 48 |
| Co-writer of "The Other Woman": 1983 | 46 |
| Co-writer and star of "Bridesmaids" | 45 |
| Co-workers' gab | 19 |
| Co-workers of R.N.'s | 24 |
| Co-worker: Abbr. | 16 |
| Co-worker of Woody and Diane | 28 |
| Co-worker of Lois and Jimmy | 27 |
| Co-worker of Kent and Olsen | 27 |
| Co-worker of Kennedy starting in 2006 | 37 |
| Co-worker of Igor and Frau Blücher in "Young Frankenstein" | 71 |
| Co-worker of Homer on "The Simpsons" | 46 |
| Co-worker of Dilbert | 20 |
| Co-worker of Clark | 18 |
| Co-worker for Kent and Lane | 27 |
| Co-winner of the Peace Prize: 1978 | 34 |
| Co-winner of the first Albert Einstein Award, 1951 | 50 |
| Co-winner of 1994 Nobel Peace Prize | 35 |
| Co-winner of 1978 Nobel Peace Prize | 35 |
| Co-tsar with Peter I | 20 |
| Co-star with Moore and Asner | 28 |
| Co-star with Kate and Jaclyn | 28 |
| Co-star with Courteney and Jennifer | 35 |
| Co-star with Clark and Grace | 28 |
| Co-star with Caesar? | 20 |
| Co-star with Bolger and Haley | 29 |
| Co-star with Betty, Rue and Estelle | 35 |
| Co-star with Ball, Arnaz and Frawley | 36 |
| Co-star on TV's "Taxi" | 36 |
| Co-star of TV's "Dharma & Greg" | 49 |
| Co-star of TV's "Chuck" | 37 |
| Co-star of Tom in "Angels & Demons" | 49 |
| Co-star of Tom in "A Few Good Men" | 44 |
| Co-star of Tina, Alec and Jane | 30 |
| Co-star of the American premiere of "Waiting for Godot" | 65 |
| Co-star of Teri, Marcia and Felicity | 36 |
| Co-star of Teri, Felicity, and Marcia | 37 |
| Co-star of Teri and Felicity | 28 |
| Co-star of Stewart and Frakes | 29 |
| Co-star of Steve in "The Magnificent Seven" | 53 |
| Co-star of Spade and San Giacomo | 32 |
| Co-star of Sorvino and De Niro in "GoodFellas" | 56 |
| Co-star of Smith and Jackson | 28 |
| Co-star of Showtime's "Homeland" | 46 |
| Co-star of Rue and Betty | 24 |
| Co-star of Romano and Roberts | 29 |
| Co-star of Richard in "The Night of the Iguana" | 57 |
| Co-star of Richard Belzer | 25 |
| Co-star of Principal and Duffy | 30 |
| Co-star of Parker, Cattrall and Davis | 37 |
| Co-star of Nimoy and Shatner | 28 |
| Co-star of Natalie in "Black Swan" | 44 |
| Co-star of Morgan and Baldwin | 29 |
| Co-star of Moore and Knight | 27 |
| Co-star of Mia in "Another Woman" | 43 |
| Co-star of Matthew in "The Lincoln Lawyer" | 52 |
| Co-star of Marcia, Felicity and Nicollette | 42 |
| Co-star of Marcello in "La Dolce Vita" | 48 |
| Co-star of Liam in "Les Misérables," 1998 | 54 |
| Co-star of Kudrow and Schwimmer | 31 |
| Co-star of Kristin, Cynthia and Sarah Jessica | 45 |
| Co-star of Kelsey, once | 23 |
| Co-star of Kate and Jaclyn | 26 |
| Co-star of Kate and Farrah, in 1970s TV | 39 |
| Co-star of John and Samuel in "Pulp Fiction" | 54 |
| Co-star of Joel in the film "Cabaret" | 47 |
| Co-star of Joel in "Cabaret" | 38 |
| Co-star of Ingrid in "Autumn Sonata" | 46 |
| Co-star of Hugh on "House" | 36 |
| Co-star of Hirsch and Danza | 27 |