Modifiers matching income:

• passive,
• out,
• extra,
• periodic,
• significant,
• additional,
• monthly,
• secondary,
• australian,
• current,
• financial,
• unearned,
• alternative,
• personal,
• total,
• annual,
• taxable,
• movable,
• primary,
• ancillary,
• local,
• ordinary,
• related,
• regular,
• domestic,
• earned,
• economic,
• future,
• foreign,
• active,
• variable,
• independent,
• fixed,
• global,
• private,
• individual,
• miscellaneous,
• corporate,
• outside,

Simple categories matching passive:

• endeavour,
• income,
• energy,
• implementation,
• activity,
• concept,
• gas,
• constituent,
• structure,
• sensor,
• instrument,
• failure,
• system,
• measure,
• devices,
• transport,
• object,
• damper,
• character,
• medium,
• emotion,
• device,
• tag,
• attribute,
• conveyor,
• process,
• part,
• information,
• liquid,
• transducer,
• inactivity,
• bird,
• use,
• game,
• procedure,
• attitude,
• design,
• production,
• quality,
• investment,
• instruction,
• usage,
• source,
• facility,
• earnings,
• dispenser,
• approach,
• access,
• profit,
• action,
• task,
• area,
• contaminant,
• property,
• entertainment,
• metal,
• display,
• predator,
• circuit,
• entity,
• outlet,
• data,
• means,
• exercise,
• tool,
• characteristic,
• organism,
• dielectric,
• quantity,
• state,
• barrier,
• constraint,
• content,
• elements,
• element,
• assets,
• stretching,
• intervention,
• surface,
• motion,
• restraint,
• interference,
• artefact,
• nature,
• conductor,
• block,
• losses,
• mechanism,
• model,
• equipment,
• form,
• mixer,
• craft,
• program,
• communication,
• feature,
• movement,
• recreation,
• tissue,
• component,
• care,
• education,
• gear,
• modality,
• plate,
• control,
• regulation,
• radiator,
• cooling,
• safety,
• trap,
• therapy,
• stretch,
• method,
• treatment,
• appliance,
• particle,
• technology,
• material,
• level,
• obstacle,
• vessel,