Modifiers matching safety:

• electrical,
• internal,
• personal,
• pedestrian,
• passive,
• occupational,
• public,
• marine,
• interior,
• active,
• general,
• structural,
• industrial,
• systemic,

Simple categories matching passive:

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