| Of AM | 5 |
| Of ample girth | 14 |
| Of an aboriginal group | 22 |
| Of an academic degree | 21 |
| Of an acid | 10 |
| Of an acid group | 16 |
| Of an acid: Prefix | 18 |
| Of an age | 9 |
| Of an age when pork and mutton were pretty much all you ate? | 60 |
| Of an air element | 17 |
| Of an allied group | 18 |
| Of an Alpine geologic era | 25 |
| Of an ancient Aegean culture | 28 |
| Of an ancient alphabet | 22 |
| Of an ancient Arabian kingdom | 29 |
| Of an ancient Celtic religion | 29 |
| Of an ancient division of Palestine | 35 |
| Of an ancient English tribe | 27 |
| Of an ancient Frank | 19 |
| Of an ancient Greek city | 24 |
| Of an ancient Greek culture | 27 |
| Of an ancient Greek period | 26 |
| Of an ancient Peruvian empire | 29 |
| Of an Andean empire | 19 |
| Of an animal | 12 |
| Of an antiseptic | 16 |
| Of an antiseptic test | 21 |
| Of an apostle | 13 |
| Of an architectural order | 25 |
| Of an architectural style | 25 |
| Of an area | 10 |
| Of an area of Turkey | 20 |
| Of an Arizona tribe | 19 |
| Of an arm bone | 14 |
| Of an arm bone: Prefix | 22 |
| Of an armbone | 13 |
| Of an armbone: Comb. form | 25 |
| Of an armed service | 19 |
| Of an arterial trunk | 20 |
| Of an Asian nation | 18 |
| Of an Asian nation: Prefix | 26 |
| Of an Asian race: Prefix | 24 |
| Of an assemblage | 16 |
| Of an astronaut's environment | 33 |
| Of an atomic form | 17 |
| Of an atrioventricular valve | 28 |
| Of an Austrian area | 19 |
| Of an early Eastern doctrine | 28 |
| Of an early era of man | 22 |
| Of an early Greek doctrine | 26 |
| Of an earth area | 16 |
| Of an earth line | 16 |
| Of an earthquake | 16 |
| Of an earthquake's origin | 29 |
| Of an earthy pigment | 20 |
| Of an Eastern doctrine | 22 |
| Of an ecological period | 23 |
| Of an ecological succession | 27 |
| Of an ego source | 16 |
| Of an Egyptian peninsula | 24 |
| Of an electric unit | 19 |
| Of an electrical unit | 21 |
| Of an element | 13 |
| Of an element important in electricity | 38 |
| Of an empire | 12 |
| Of an epoch | 11 |
| Of an extent | 12 |
| Of an eye layer | 15 |
| Of an eye membrane | 18 |
| Of an eye part | 14 |
| Of an eye part: Prefix | 22 |
| Of an hour | 10 |
| Of an image | 11 |
| Of an immobile state | 20 |
| Of an important period | 22 |
| Of an infection | 15 |
| Of an infectious agent | 22 |
| Of an insect stage | 18 |
| Of an insect's stage | 24 |
| Of an interruption | 18 |
| Of an intestine | 15 |
| Of an Islamic mysticism | 23 |
| Of an Islamic shrine | 20 |
| Of an island | 12 |
| Of an Italian city | 18 |
| Of an ocean motion | 18 |
| Of an offspring | 15 |
| Of an old Andean empire | 23 |
| Of an old anesthetic | 20 |
| Of an old empire | 16 |
| Of an old Nile city | 19 |
| Of an Old World tree | 20 |
| Of an orbital point | 19 |
| Of an organic compound | 22 |
| Of an S.A. range | 16 |
| Of an upper heart chamber | 25 |
| Of ancient ascetics | 19 |
| Of ancient Greece | 17 |
| Of ancient Icelandic literature | 31 |
| Of ancient Peru | 15 |