| 100% | APO | 3 | Abbr. on a letter to a soldier |
| 82% | APO | 3 | Abbreviation on a letter to a soldier |
| 79% | SRTA | 4 | Abbr. on a letter to Spain |
| 78% | MME | 3 | Abbr. on a letter to Paris, maybe |
| 72% | APO | 3 | Abbr. on mail to a soldier |
| 70% | ATTN | 4 | Abbr. on a business letter, to make a part stand out |
| 65% | APO | 3 | Abbreviation on a package to a soldier |
| 62% | POR | 3 | ___ avión (stamp on a letter to Spain) |
| 60% | SWAK | 4 | Abbr. on a love letter |
| 60% | ATTN | 4 | Abbr. on a business letter |
| 60% | MME | 3 | Abbr. on a French letter |
| 60% | ENCL | 4 | Abbr. on a business letter |
| 60% | ENC | 3 | Abbr. on a business letter |
| 60% | ENC | 3 | Abbr. on a cover letter |
| 59% | PPS | 3 | After-afterthought on a letter: Abbr. |
| 58% | ESQ | 3 | Letters on the door to a lawyer's office |
| 58% | APO | 3 | Letters on letters to soldiers |
| 58% | RIP | 3 | Letter on a tombstone: Abbr. |
| 58% | INRI | 4 | Letter on a cross: Abbr. |
| 58% | RIP | 3 | Letters on a tombstone: Abbr. |
| 58% | RIP | 3 | Letters on a tombstone: Abbr |
| 58% | INRI | 4 | Letters on a crucifix: Abbr. |
| 58% | ENCL | 4 | Abbr. on the bottom of a business letter |
| 57% | ADA | 3 | Letters on a toothpaste tube: Abbr. |
| 57% | NSF | 3 | Letters on a bounced check: Abbr. |
| 57% | NASA | 4 | Letters on a space shuttle: Abbr. |
| 57% | SPF | 3 | Letters on a tanning lotion: Abbr. |
| 57% | SPF | 3 | Letters on a tanning-lotion bottle: Abbr. |
| 57% | DEF | 3 | Letters next to 3 on a phone |
| 56% | SPF | 3 | Letters preceding a number on sunscreen bottles: Abbr. |