Modifiers matching electron:

• heavier,
• secondary,

Simple categories matching heavier:

• dish,
• area,
• material,
• article,
• fabric,
• mineral,
• weapon,
• ball,
• fuel,
• source,
• deposit,
• item,
• atom,
• metal,
• linen,
• impurity,
• utensil,
• fibre,
• gear,
• medium,
• piece,
• fastener,
• arms,
• implement,
• ion,
• industry,
• liquid,
• weaponry,
• particle,
• meal,
• wood,
• lepton,
• vehicle,
• machinery,
• vegetable,
• alkane,
• tool,
• aggregate,
• garment,
• component,
• surface,
• camera,
• paper,
• sawdust,
• unit,
• furniture,
• armament,
• fluid,
• contamination,
• music,
• sediment,
• system,
• filament,
• hardwood,
• mixture,
• pellet,
• transport,
• thread,
• needle,
• pasta,
• substance,
• activity,
• object,
• gas,
• compound,
• job,
• stuff,
• electron,
• grain,
• fish,
• instrument,
• cake,
• fixture,
• product,
• car,
• isotope,
• work,
• agent,
• tm,
• elements,
• glove,
• construction,
• machine,
• footwear,
• residue,
• clothes,
• food,
• load,
• textile,
• halogen,
• hydrocarbon,
• sweetener,
• ship,
• part,
• thing,
• distillate,
• container,
• plant,
• constituent,
• knit,
• bread,
• dirtiness,
• stock,
• contaminant,
• meson,
• artifact,
• fraction,
• alloy,
• stain,
• scent,
• order,
• chemical,
• hadron,
• body,
• commodity,
• foundation,
• decoration,
• aircraft,
• bird,
• equipment,
• volatile,
• sport,
• leaf,
• substrate,
• fare,
• style,
• solid,
• structure,
• papers,
• paint,
• clothing,
• element,
• conductor,
• alcohol,
• waste,
• meat,
• line,
• package,
• post,
• soil,
• congener,
• rock,