NHB
NHB may refer to the unrestricted style of combat sport, a NASA reference manual, the U.S. National Honey Board, or a national housing bank, depending on the context.
Medical
Miscellaneous
Never Heard Before
Normal Human Being
No Holding Back
Norman Hackerman Building
Nistler Home Builders
Number of Hydrogen Bonds
National Heritage Board
Not Hard Beatz
Not Heard Before