| Collaborative Web document | 26 |
| Collaborative Web project | 25 |
| Collaborative Web site | 22 |
| Collaborative website | 21 |
| Collaborative website for Lady Gaga and RuPaul? | 47 |
| Collaborative websites | 22 |
| Collaborative work | 18 |
| Collaboratively edited site | 27 |
| Collaborator | 12 |
| Collaborator of a sort | 22 |
| Collaborator of Byrne and Bowie | 31 |
| Collaborator of Crosby, Stills and Young | 40 |
| Collaborator of Marx | 20 |
| Collaborator with a Count and a Duke | 36 |
| Collaborator with Claude Debussy | 32 |
| Collaborator with Disney on the film "Destino" | 56 |
| Collaborator with Duchamp | 25 |
| Collaborator with Engels | 24 |
| Collaborator with Kaufman | 25 |
| Collaborator with Marx | 22 |
| Collaborator with Paul Simon on his 2006 album "Surprise" | 67 |
| Collaborator with Sinatra and Katy Perry | 40 |
| Collaborator with Twain | 23 |
| Collaboratory obstacle | 22 |
| Collage | 7 |
| Collage application | 19 |
| Collage creator's need | 26 |
| Collage introducer | 18 |
| Collage material | 16 |
| Collage materials | 17 |
| Collage of potpourri bits? | 26 |
| Collage of songs | 16 |
| Collage specialist | 18 |
| Collage, e.g. | 13 |
| Collage-maker's need | 24 |
| Collage-making material | 23 |
| Collage-making need | 19 |
| Collagen cousin | 15 |
| Collagen injection site | 23 |
| Collagen product | 16 |
| Collagen target | 15 |
| Collagist Max | 13 |
| Collagist's need | 20 |
| Collagist's tool | 20 |
| Collander | 9 |
| Collapsable bed | 15 |
| Collapse | 8 |
| Collapse from excitement, in Yiddish | 36 |
| Collapse from exhaustion | 24 |
| Collapse from exhaustion, in slang | 34 |
| Collapse in a weary heap | 24 |
| Collapse in the clutch | 22 |
| Collapse inward | 15 |
| Collapse under pressure | 23 |
| Collapse, in a way | 18 |
| Collapse, with "in" | 29 |
| Collapse, with "out" | 30 |
| Collapse, with "over" | 31 |
| Collapsed | 9 |
| Collapsed company chronicled in the 2005 documentary subtitled "The Smartest Guys in the Room" | 104 |
| Collapsed company of 2001 | 25 |
| Collapsed suddenly, as the stock market | 39 |
| Collapsed under pressure | 24 |
| Collapsed, with "in" | 30 |
| Collapses | 9 |
| Collapses, with "in" | 30 |
| Collapses, with "over" | 32 |
| Collapsible bed | 15 |
| Collapsible beds | 16 |
| Collapsible canopies | 20 |
| Collapsible chapeau | 19 |
| Collapsible furniture | 21 |
| Collapsible headgear | 20 |
| Collapsible items | 17 |
| Collapsible lid | 15 |
| Collapsible lodging | 19 |
| Collapsible place to collapse | 29 |
| Collapsible shelter | 19 |
| Collapsible silk topper | 23 |
| Collapsible topper | 18 |
| Collapsing sound | 16 |
| Collar | 6 |
| Collar a con | 12 |
| Collar a perp | 13 |
| Collar a perp, perhaps | 22 |
| Collar abbr. | 12 |
| Collar accessory | 16 |
| Collar accessory for Fido | 25 |
| Collar adjunct | 14 |
| Collar and cuff | 15 |
| Collar and jacket | 17 |
| Collar attachment | 17 |
| Collar attachments | 18 |
| Collar button | 13 |
| Collar category | 15 |
| Collar clip-on | 14 |
| Collar continuation | 19 |
| Collar controller | 17 |
| Collar extension | 16 |
| Collar extensions | 17 |