Clue: Last single-digit number

Answer: NINE

Length: 4

---

Similar Clues:

• One of two single-digit Yankee uniform numbers that aren't retired (SIX with 3 letters)
• Fifth single digit, alphabetically (ONE with 3 letters)
• Obvious trait of a certain two-digit number? (TWENTYFOURSEVEN with 15 letters)
• Single numbers? (SOLI with 4 letters)
• Highest single digit (NINE with 4 letters)
• Five- or nine-digit number (e.g. ZIP with 3 letters)
• Number before : on a digital clock (HOUR with 4 letters)
• Single number?: Abbr. (RPM with 3 letters)
• Literally, "single number" (SUDKU with 5 letters)
• It often precedes a three-digit number (EXT with 3 letters)