- highflying
- high frequency
- high gear
- High German
- high-grade
- high ground
- highhanded
- high hat
- high-hat
- high-hat cymbals
- High Holy Day
- high horse
- high-income
- highjack
- high jinks
- high jinx
- high jump
- highland
- Highland
- Highland Community College (Illinois)
- Highland Community College (Kansas)
- highlander
- highlanders
- Highland fling
- Highland Park