Category Nuances for aviation:

• private,
• economic,
• major,
• modern,
• secondary,
• dangerous,
• individual,
• diverse,
• moving,
• thriving,
• strategic,
• critical,
• complex,
• vertical,
• sensitive,
• industrial,
• challenging,
• volatile,
• risky,
• international,
• relevant,
• global,
• specialized,
• outside,
• cyclical,
• larger,
• municipal,
• physical,
• commercial,
• visible,
• big,
• military,
• several,
• european,
• basic,
• occupational,
• operational,
• newer,
• general,
• domestic,
• educational,
• socioeconomic,
• intensive,
• skilled,
• affected,
• important,
• defined,
• supporting,
• technological,
• large,
• entire,
• competitive,
• miscellaneous,
• related,
• technical,
• key,
• national,
• regulated,
• oriented,
• particular,
• lucrative,
• advanced,
• practical,
• hazardous,
• dynamic,
• complicated,
• developing,
• extracurricular,
• recreational,
• new,
• fast,
• crucial,
• common,
• real,
• special,
• additional,
• popular,
• atmospheric,
• conventional,
• civilian,

Simple Categories for aviation:

• business,
• industry,
• action,
• sector,
• group,
• science,
• enterprise,
• unit,
• law,
• system,
• force,
• activity,
• mixture,
• course,
• measure,
• skill,
• organization,
• performance,
• organisation,
• pursuit,