Modifiers matching allergen:

• common,
• respiratory,
• airborne,
• dietary,
• harmless,
• additional,
• out,
• animal,
• outdoor,
• rare,
• active,
• relevant,
• possible,
• indoor,
• environmental,
• seasonal,
• potential,
• identifiable,
• american,
• harmful,
• strong,
• important,
• inhalant,
• major,
• natural,
• home,
• systemic,
• cereal,
• single,
• nasty,
• unhealthy,
• individual,
• new,
• typical,
• reactive,
• familiar,
• microscopic,
• organic,
• large,
• unique,
• fine,
• perennial,
• allergic,
• special,
• outside,
• size,
• particular,
• cutaneous,

Simple categories matching potential:

• industry,
• killer,
• poison,
• predator,
• prey,
• complication,
• host,
• contaminant,
• people,
• problem,
• learner,
• committee,
• career,
• allergen,
• condition,
• animal,
• danger,
• carrier,
• thing,
• cause,
• pollinator,
• structure,
• opponent,
• person,
• hazard,
• user,
• disorder,
• attack,
• binder,
• contamination,
• location,
• pest,
• artifact,
• event,
• illness,
• use,
• entrant,
• application,
• creature,
• product,
• herbivore,
• interference,
• mishap,
• agent,
• fighter,
• quantity,
• disease,
• toxin,
• mixture,
• source,
• output,
• financier,
• victim,
• constituent,
• conflict,
• bacteria,
• market,
• customer,
• pathogen,
• pollutant,
• discriminator,
• group,