| 100% | SEMIMINORAXIS | 13 | Shortest radius of an ellipse |
| 67% | SEMIMINOR | 9 | ___ axis, half of an ellipse's shorter diameter |
| 51% | FOCI | 4 | An ellipse has two of them |
| 51% | FOCI | 4 | An ellipse has two of these |
| 51% | ANON | 4 | Short indication of an unattributed quote |
| 50% | MAJORAXIS | 9 | Line that passes through both of an ellipse's foci |
| 50% | MAJORAXIS | 9 | Line that passes through both of an ellipse’s foci |
| 49% | PAREN | 5 | Start of an aside, for short |
| 49% | REPO | 4 | Takeback of an automobile, for short |
| 49% | JIFF | 4 | Blink of an eye, for short |
| 49% | CEO | 3 | Top of an outfit, for short? |
| 49% | MIN | 3 | Part of an hour, for short |
| 49% | GDP | 3 | Measure of an economy, for short |
| 48% | DUI | 3 | Cause of an insurance increase, for short |
| 48% | APO | 3 | Part of an embassy address, for short |
| 48% | REP | 3 | Part of an exercise routine, for short |
| 48% | ALUM | 4 | Former student of an institution, for short |
| 48% | MILS | 4 | One thousandths of an inch, for short |
| 48% | MIL | 3 | One-thousandth of an inch, for short |
| 48% | MGMT | 4 | Top rung of an organization, for short |
| 48% | SECS | 4 | 3600 bits of an hour, for short |
| 48% | IRA | 3 | Part of an investment portfolio, for short |
| 48% | INTRO | 5 | First bit of an essay, for short |
| 48% | GRAD | 4 | Member of an alumni club, for short |
| 48% | MIN | 3 | 1/60th of an hour, for short |
| 47% | IRA | 3 | Part of an old-age plan, for short |
| 46% | PAREN | 5 | The smile or frown of an emoticon, for short |
| 46% | PARAS | 5 | Parts of an essay or a letter, for short |
| 46% | ALT | 3 | Height of an object from the ground, for short |
| 46% | INDY | 4 | Site of an annual 500-mile race, for short |