| End of many an argument | 23 |
| End of an argument | 18 |
| End of a math proof | 19 |
| Conclusive letters | 18 |
| Conclusion letters | 18 |
| Concluding letters for a proof reader | 37 |
| Calculus class letters | 22 |
| As shown, for short | 19 |
| Argument ender | 14 |
| Abbr. that a proof reader might come across? | 44 |
| Abbr. in a math textbook | 24 |
| Abbr. ending a math proof | 25 |
| Abbr. after a series of equations, maybe | 40 |
| "That's how it's done" mathematically | 55 |
| "That's how it's done" | 40 |
| "That which was to be demonstrated," in proofs | 56 |
| "Proved!" letters | 27 |
| "And there you have it!" to a mathematician | 53 |
| "And that's how it's done!", for short | 56 |
| "And that proves it" | 30 |
| ''Proved!'' letters | 35 |
| Modern-day monarch who addresses her nation on Christmas annually, for short | 76 |
| Ocean liner, briefly | 20 |
| Modern-day monarch, for short | 29 |
| Legendary ocean liner, familiarly | 33 |
| Cunard vessel named for a reigning monarch, familiarly | 54 |
| Cunard flagship for 35 yrs. | 27 |
| Ruler crowned in 1953, informally | 33 |
| Royally named liner, briefly | 28 |
| Role for Helen Mirren, briefly | 30 |
| Retired Cunard liner, briefly | 29 |
| Retired Cunard flagship, for short | 34 |
| Oscar-winning role for Helen Mirren, in brief | 45 |
| Monarch moniker, for short | 26 |
| Long-reigning English monarch, informally | 41 |
| Liner retired on 11/27/08 | 25 |
| Liner of note | 13 |
| Kate Middleton's mother-in-law, for short | 45 |
| Helen Mirren's crowning role, informally? | 45 |
| Former Cunard fleet member, for short | 37 |
| Former Cunard flagship, for short | 33 |
| Famed liner, briefly | 20 |
| Famed Cunard liner, for short | 29 |
| Famed Cunard liner, familiarly | 30 |
| Famed British liner, briefly | 28 |
| Cunard retiree, briefly | 23 |
| Cunard liner, informally | 24 |
| British monarch, initially | 26 |
| British monarch beginning in '52 | 36 |
| Prescription abbr. | 18 |
| Rx abbr. | 8 |
| Four times a day, on an Rx | 26 |
| Four times a day, in an Rx | 26 |
| Four times a day, in prescriptions | 34 |
| Four times daily, in an Rx | 26 |
| Four times a day: Abbr. | 23 |
| Every six hours, on a prescription | 34 |
| Former Albanian coin | 20 |
| 1/100 of an Albanian lek | 24 |
| Popular 1980s arcade game where one had to fence off a supermajority of the screen | 82 |
| Popular 1980s arcade game based on simple geometry | 50 |
| Classic '80s video game in which one draws with a diamond marker | 68 |
| Arcade game of the 1980s | 24 |
| 1980s arcade game where one had to dodge Sparx | 46 |
| 1980s arcade classic that involved drawing boxes | 48 |
| '80s video game where the player is a diamond-shaped marker | 63 |
| '80s arcade game in which you had to evade Sparx | 52 |
| Unix transfer agent for online correspondence | 45 |
| City of Iran | 12 |
| Iranian holy city | 17 |
| Shiite center in Iran | 21 |
| Shi'ite mecca of central Iran | 33 |
| Shi'a center | 16 |
| Pilgrimage mecca SW of Tehran | 29 |
| Iranian city of almost 1,000,000 | 32 |
| Holy city near Teheran | 22 |
| City SW of Tehran | 17 |
| City southwest of Teheran | 25 |
| City south-southwest of Tehran | 30 |
| City near Tehran | 16 |
| City near Teheran | 17 |
| Central Iran city | 17 |
| PT separators | 13 |
| Football game divs. | 19 |
| P-T linkup | 10 |
| P-T link | 8 |
| P-T filler | 10 |
| "Up above the ..." | 28 |
| Ear-cleaning swab | 17 |
| Wax remover | 11 |
| Swab brand | 10 |
| Makeup kit item | 15 |
| Little swab | 11 |
| Makeup applicator | 17 |
| Canal-cleaning device | 21 |
| Unilever swab | 13 |
| Swab name | 9 |
| Stick it in your ear! | 21 |
| Stick in a medicine cabinet | 27 |
| Stick in a cabinet | 18 |