Modifiers matching allergen:

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

Simple categories matching potential:

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