Clue: Vowels, in alphabetical order

Answer: AEIOU

Length: 5

---

Similar Clues:

• Only 20th-century president whose three distinct initials are in alphabetical order (HST with 3 letters)
• Inits. on a rush order (ASAP with 4 letters)
• Drill instructor's order (e.g. ATEASE with 6 letters)
• Dressing order, informally (BLEU with 4 letters)
• Alphabetical order? (e.g. BLT with 3 letters)
• Short-order initials (BLT with 3 letters)
• Initial lunch order (BLT with 3 letters)
• Deli order, initially (BLT with 3 letters)
• Alphabetical orders? (BLTS with 4 letters)
• Part of India's pecking order (CASTE with 5 letters)