Clue: Letter openers?

Answer: ABCD

Length: 4

---

Similar Clues:

• Letter openers (e.g. DEARS with 5 letters)
• Believer's bracelet letters (WWJD with 4 letters)
• Short-term letters (INNS with 4 letters)
• Smash letters? (SRO with 3 letters)
• Letters on some business checks (DBA with 3 letters)
• Letters of proof (QED with 3 letters)
• Letter signoff, for short (YRS with 3 letters)
• Raised-letter printers (EMBOSSERS with 9 letters)
• Hawthorne's scarlet letter (REDA with 4 letters)
• Plural-ending letter, usually (ESS with 3 letters)