| Word form |
| NATO, e.g. |
| NASA, e.g. |
| Scuba, e.g. |
| Radar, e.g. |
| NATO or OPEC |
| NASA or NATO |
| NASA, for one |
| NATO, for one |
| Laser or radar |
| Radar or laser |
| SCUBA, for one |
| NASCAR or NASDAQ |
| Opening letters? |
| Word from initials |
| 'AWOL' or 'FAQ,' e.g. |
| It stands for something |
| Word made up of initials |
| Word formed from initials |
| Pronounceable abbreviation |
| Word made up of initial letters |
| Basis of the answer to each starred clue, commonly |
| The longest one in English is the Navy term "ADCOMSUBORDCOMPHIBSPAC |