humdinger /hum-dingˈər/ (slang)

1. An exceptionally excellent person or thing
2. A smooth-running engine
3. A swift vehicle or aircraft

• Hanukkah
• hanuman
• hanumans
• haoma
• haomas
• haoma vine
• hap
• hapax legomenon
• ha'pence
• ha'penny
• haphazard
• haphazardly
• haphazardness
• haphazardnesses
• haphazards
• Haphtarah
• Haphtorah
• hapless
• haplessly
• haplessness
• haplessnesses
• haplo-
• haplodiploid
• haplodiploidy
• haplographies