| Key stone? | 10 |
| Key state?: Abbr. | 17 |
| Key state? (Abbr.) | 18 |
| Key state: Abbr. | 17 |
| Key state (abbr.) | 17 |
| Key starting words | 18 |
| Key starter? | 12 |
| Key start? | 10 |
| Key spot? | 9 |
| Key spot on a car | 17 |
| Key sound? | 10 |
| Key sometimes called "option" | 39 |
| Key site | 8 |
| Key signature with no sharps or flats | 37 |
| Key signature with four sharps | 30 |
| Key signature preceder | 22 |
| Key shade | 9 |
| Key setting | 11 |
| Key sequence in a chromosome | 28 |
| Key scene for bursting bombs? | 29 |
| Key same as B | 13 |
| Key rings? | 10 |
| Key ring? | 9 |
| Key ring | 8 |
| Key Revolutionary battle: Oct. 7, 1777 | 38 |
| Key requirement for an IBM bailout? | 35 |
| Key requirement for an IBM bailout | 34 |
| Key requirement for a PC bailout | 32 |
| Key requirement for a Microsoft bailout? | 40 |
| Key represented by all white keys on a piano | 44 |
| Key related to F-sharp min. | 27 |
| Key related to F# minor: Abbr. | 30 |
| Key related to D major | 22 |
| Key related to C-sharp min. | 27 |
| Key related to C maj. | 21 |
| Key related to C | 16 |
| Key ratings period for TV producers | 35 |
| Key ratings period | 18 |
| Key pushed repeatedly during a crash | 36 |
| Key prop in the Cinderella story | 32 |
| Key products | 12 |
| Key pressed to leave full-screen mode on YouTube | 48 |
| Key pressed frantically during a crash | 38 |
| Key preposition? | 16 |
| Key preposition | 15 |
| Key position? | 13 |
| Key point | 9 |
| Key plot point giveaway | 23 |
| Key players? | 12 |
| Key players | 11 |
| Key player | 10 |
| Key play in a gridiron game | 27 |
| Key piece of extra information | 30 |
| Key pie ingredient? | 19 |
| Key pie ingredient | 18 |
| Key pie fruit? | 14 |
| Key piano key | 13 |
| Key phrase in this crossword | 28 |
| Key phrase | 10 |
| Key personnel? | 14 |
| Key personnel group | 19 |
| Key person? | 11 |
| Key person in England | 21 |
| Key person | 10 |
| Key periods | 11 |
| Key pension law: abbr. | 22 |
| Key partner | 11 |
| Key part of the immune system | 29 |
| Key part of a PC | 16 |
| Key over Control | 16 |
| Key over | 8 |
| Key or Turner | 13 |
| Key or league | 13 |
| Key or Kennedy | 14 |
| Key or cay | 10 |
| Key opus | 8 |
| Key opposite Caps Lock | 22 |
| Key opening? | 12 |
| Key opening | 11 |
| Key opener? | 11 |
| Key one might pound out of frustration | 38 |
| Key on the far left of a keyboard | 33 |
| Key on some typewriters | 23 |
| Key on P.C. keyboards | 21 |
| Key on an old register | 22 |
| Key on an old cash register | 27 |
| Key on a PC | 11 |
| Key on a map | 12 |
| Key on a keypad | 15 |
| Key on a keyboard's bottom row | 34 |
| Key on a keyboard | 17 |
| Key on a calculator | 19 |
| Key often used with Ctrl and Del | 32 |
| Key often pressed with Alt and Del | 34 |
| Key often pressed frantically when the computer freezes | 55 |
| Key often hit while frustrated | 30 |
| Key often hit in anger | 22 |
| Key officers group | 18 |
| Key officers | 12 |
| Key of Westminster Palace's bells | 37 |