| Maximum number of party attendees, perhaps |
| Acct. numbers |
| Atomic number 44 symbol |
| Numbers that never get smaller |
| Result of two people with incompatible values exchanging numbers, perhaps |
| Numbered cube |
| Indefinite number |
| Approx. number |
| Great numbers |
| A napkin with the name of a hotel and the indentations of a phone number on a notepad, etc. |
| Andrea Bocelli numbers |
| Suffix on ordinal numbers |
| Albéniz piano masterpiece |
| An Infinite Number of Monkeys" mystery writer Roberts |
| Aaron Neville number about "The Scream"? |
| Cartoonist Gardner's unlisted number? |
| Sitting through a bad piano recital, e.g. |
| Unlucky Roman number? |
| Number for an acid |
| Suffix of most ordinal numbers |
| Operator's number? |
| Like the winner in a number-guessing contest, perhaps |
| Number that's physically impossible to write out in standard form |
| Math set with an unspecified number of elements |
| Bygone numbers |
| Physicist Mach who coined the term "Mach number |
| Noble gas, atomic number 18 |
| Numbers on H.S. transcripts |
| Huge number |
| A number: Ger. |