BOM
BOM is common in business for managerial titles, in government for the national weather agency, and in engineering for detailed lists of components and materials.
Medical
Miscellaneous
Basis Of Mobility
Bob Old Man
Build Of Material
Bird Of The Month
Boogles Of Moogles
Blades Of Marr
Bet On Markets
Book Of the Month
Block Of the Month
Birmingham Open Media
Box Office Mojo
Bit Order Marker
Baby of McLeod
Bill Of Manufacture