Clue: Texting or email shorthand

Answer: IMO

Length: 3

---

Similar Clues:

• Incidentally, in texting shorthand (BTW with 3 letters)
• Rush order shorthand (ASAP with 4 letters)
• Rush-order shorthand (ASAP with 4 letters)
• Closest pal, in texting shorthand (BFF with 3 letters)
• ___ slipper (orchid type) (LADYS with 5 letters)
• Orbit's closest point (PERIGEE with 7 letters)
• Deep orange hue (MARSRED with 7 letters)
• Short shorthand writer? (STENO with 5 letters)
• Half of an Orkan farewell (NANU with 4 letters)
• Body of water south of Orsk (ARALSEA with 7 letters)