| Maximum number of party attendees, perhaps |
| Acct. numbers |
| Anatomical fissures |
| Numbers that never get smaller |
| Atomic number 44 symbol |
| Anatomical cavity |
| Result of two people with incompatible values exchanging numbers, perhaps |
| Anatomical sacs |
| Numbered cube |
| Indefinite number |
| A napkin with the name of a hotel and the indentations of a phone number on a notepad, etc. |
| Anatomical rupture |
| Great numbers |
| Approx. number |
| Suffix on ordinal numbers |
| Andrea Bocelli numbers |
| Like negative numbers, seemingly |
| Anatomical projection |
| Number that's physically impossible to write out in standard form |
| Anatomical loop |
| Unlucky Roman number? |
| An Infinite Number of Monkeys" mystery writer Roberts |
| Anatomical parts that touch, as eyelids to eyeballs |
| Suffix of most ordinal numbers |
| Aaron Neville number about "The Scream"? |
| Anatomical rings |
| Cartoonist Gardner's unlisted number? |
| Number for an acid |
| Operator's number? |
| Math set with an unspecified number of elements |