HBO means Howard B. Owens Science Center, Lanham, Maryland in Schools
Similar to HBO
ADSS - Alberni District Secondary SchoolADTL - Army-wide Doctrinal and Training Literature
ADVP - Adult Developmental Vocational Program
AEB - Academic Enrichment Block
AED - Automatic External Defibrillator
AEPP - Academic English Preparation Program
AESC - Academic Enrichment Support Center
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