| 100% | CARBON | 6 | The first C in BCC used in emails, blind __ copy |
| 43% | COMPLETE | 8 | The first C in the medical term CBC |
| 38% | ITALO | 5 | ___-Turkish War, in which the first aerial bombs were used |
| 38% | STREET | 6 | The first __ lights were used in ancient Rome |
| 38% | UZIS | 4 | Guns first used in the Suez Crisis |
| 38% | SCUD | 4 | Missile used in the first Gulf War |
| 37% | RADIO | 5 | It was used to play music for the first time in 1906 |
| 37% | PIUS | 4 | Papal name first used in the second century |
| 37% | SCUD | 4 | Missile first used in the Yom Kippur War |
| 37% | CGI | 3 | Special FX first used in the movie "Vertigo" |
| 37% | GORE | 4 | Representative who made the first speech on C-SPAN in 1979 |
| 37% | WOODEN | 6 | Type of barrels used in the first diving bells |
| 36% | ODE | 3 | Type of poem often used as the first word in the poem's title |
| 36% | HALF | 4 | First ___ (only portion of the alphabet used in this puzzle's grid) |
| 36% | ACTS | 4 | Where the word "Christian" is first used in the Bible |
| 36% | CTRL | 4 | Key used in the PC shortcuts for cut, copy, and paste |
| 35% | ETHER | 5 | Anesthetic first used during surgeries in the 1840s |
| 35% | ALLISTRUE | 9 | Original title of Shakespeare's "Henry VIII" (the latter not used until the First Folio in 1623) |
| 35% | NOR | 3 | Conjunction used three times in the first line of Shakespeare's Sonnet 65 |
| 34% | WEAPONS | 7 | Yo-yos were first used as __ in the Philippines |
| 34% | ATH | 3 | The first "A" in N.C.A.A.: Abbr. |
| 34% | AOL | 3 | ISP whose email was used in the 1998 romantic comedy "You've Got Mail" |
| 34% | STUKA | 5 | German Junkers-87 dive-bomber first used in combat in the Spanish Civil War |
| 34% | THY | 3 | Word used three times in the first four lines of the Lord's Prayer |
| 34% | ASSN | 4 | The first "A" in N.A.A.C.P.: Abbr. |
| 34% | STUKA | 5 | German Junkers Ju-87 dive bomber first used in combat in the Spanish Civil War |
| 33% | ANG | 3 | Gp. whose C-130s delivered the first humanitarian supplies to Baghdad Airport in operation Iraqi Freedom |
| 33% | OPERATING | 9 | The first O in COO |
| 33% | TRAM | 4 | The first sheep in vehicle |
| 33% | DIGITAL | 7 | The first D in DVD |