Ordnance Survey Abbreviations and Acronyms

1. MNTN
   Mountain
2. MO
   Matter of Opinion
3. MON
   Monument
4. MONM
   Monmouthshire
5. MONT
   Montgomeryshire
6. MOO
   Matter of Opinion
7. MOT
   Ministry of Technology
8. MP
   Mooring Post
9. MP
   Mile Post
10. MPIIN
    Number
11. MPU
    Mail Pick-up
12. MR
    Manor
13. MRT
    March
14. MS
    Meteorological Station
15. MSD
    Master Survey Drawing
16. MSL
    Mean Sea Level
17. MSM
    March
18. MT
    Mount
19. MT
    Mountain
20. MTIN
    Mountain

Last updated: May 23, 2020 — Total entries: 1,416