| Sign that you're addicted to texting: Part 1 | 48 |
| Sign that your duck is getting older? | 37 |
| Sign up talk-show host at town dump? | 36 |
| Sign up the "SNL" producer? (var.) | 44 |
| Sign used during road construction | 34 |
| Sign warning poachers and trespassers | 37 |
| Sign where a cabinetmaker finishes? | 35 |
| Sign word near two parallel lines | 33 |
| Sign you don't want behind you | 34 |
| Sign you look for during a bad set | 34 |
| Sign-off in texting or cyber speak | 34 |
| Sign-off word, with "Yours" | 37 |
| Signal "Come here," say | 33 |
| Signal "Hi!" or "Bye!" | 42 |
| Signal "Hi!" to with a hand | 37 |
| Signal at the end of philosophy class? | 38 |
| Signal for a programmer's jump | 34 |
| Signal from a man in a trenchcoat | 33 |
| Signal from the third base coach, maybe | 39 |
| Signal from the Titanic: April, 1912 | 36 |
| Signal meaning ''help'' | 39 |
| Signal showing a storm's position | 37 |
| Signal that one's eggs are done? | 36 |
| Signal that one's ready for dinner? | 39 |
| Signal that replaced "CQD" | 36 |
| Signal to begin speaking, perhaps | 33 |
| Signal to from the pier, perhaps | 32 |
| Signal to start speaking, perhaps | 33 |
| Signal to stop, with "down" | 37 |
| Signaled "hi" or "bye" | 42 |
| Signaled completion, as a microwave | 35 |
| Signaled from across the room, say | 34 |
| Signaled on "Jeopardy!" | 33 |
| Signaling that a fox has been sighted | 37 |
| Signals Intelligence govt. agcy. | 32 |
| Signals the end of the day on base | 34 |
| Signature color of Valentine's Day | 38 |
| Signature name on the Declaration | 33 |
| Signature of "Tamerlane" author | 41 |
| Signature of Groucho's brother | 34 |
| Signature of Li'l Abner's creator | 41 |
| Signature on some writings: Abbr. | 33 |
| Signature required for documents, etc. | 38 |
| Signature scent of a cosmetics giant | 36 |
| Signature song for Johnny Mathis | 32 |
| Signature song for Sammy Davis Jr. | 34 |
| Signe of "A Double Life" | 34 |
| Signe ___, actress from Stockholm | 33 |
| Signed agreement mailed by someone in prison? | 45 |
| Signer of 1998's Wye Memorandum | 35 |
| Signer of the Camp David Accords | 32 |
| Signer of the Glass-Steagall Act | 32 |
| Signer of the Kansas-Nebraska Act | 33 |
| Signer of the Oslo Accords, with Isr. | 37 |
| Significant events outside the U.S.? | 36 |
| Significant music broadcast medium | 34 |
| Significant music industry market, nowadays | 43 |
| Significant other, in the gossip columns | 40 |
| Significant others, in modern parlance | 38 |
| Significantly diminish, as profits | 34 |
| Significantly diminishing, as profits | 37 |
| Signoff like "Truly," but shorter | 43 |
| Signora's "Mangia!" | 33 |
| Signorina's enthusiastic assent | 35 |
| Signs near a teller's window, maybe | 39 |
| Signs of agreement or sleepiness | 32 |
| Signs of allergic reactions, perhaps | 36 |
| Signs of deep sleep on an electroencephalogram | 46 |
| Signs of elation --> marathon segments | 41 |
| Signs of embarassment from George Brett? | 40 |
| Signs of indigestion from a Hamburger? | 38 |
| Signs of kitty's contentment | 32 |
| Signs of press conference uncertainty | 37 |
| Signs on a violist's sheet music | 36 |
| Signs on the dotted line, informally | 36 |
| Signs the check, but not as payer | 33 |
| Sigourney Weaver role, 1988: 2 wds. | 35 |
| Sigourney Weaver sci-fi thriller | 32 |
| Sigourney's "Gorillas..." role | 44 |
| Sigourney's role in "Alien" | 41 |
| Sigur __: ethereal Icelandic band | 33 |
| Sigur ___ (Icelandic post-rock band) | 36 |
| Silas in 'The Da Vinci Code,' e.g. | 42 |
| Silas in "The Da Vinci Code," for one | 47 |
| Silas Marner's adopted daughter | 35 |
| Silas of 'The Da Vinci Code' was one | 44 |
| Silas of "The Da Vinci Code," e.g. | 44 |
| Silas of the Continental Congress | 33 |
| Sildenafil ___ (Viagra's active ingredient) | 47 |
| Sildenafil ___ (Viagra's generic name) | 42 |
| Silence of the Lambs director | 32 |
| Silent classic of 1924 with The | 35 |
| Silent communication system: Abbr. | 34 |
| Silent film accompaniment, perhaps | 34 |
| Silent film expanding-circle effect | 35 |
| Silent film star Normand and others | 35 |
| Silent film stars Marsh and Murray | 34 |
| Silent filmdom's Keystone ___ | 33 |
| Silent movie star Gish to friends | 33 |
| Silent screen star's drink makers? | 38 |