The meaning of the Acronym HBL is...

HBL is

• Hypothesis-Based Learning

More Meanings For HBL:

• Happy Blinking Lights
• Habib Bank Limited
• Hypothesis-Based Learning
• Head-Banger Logic
• Habbo Baseball League
• Harbor Belt Line

HBL is also in:

• Accounting
• Educational
• Funnies
• Law
• Railroads
• Sports