Modifiers matching spectrum:

• wireless,
• discrete,

Simple categories matching discrete:

• unit,
• image,
• emotion,
• property,
• food,
• event,
• spectrum,
• facility,
• process,
• object,
• entity,
• obstruction,
• marker,
• switch,
• information,
• phase,
• location,
• task,
• symmetry,
• fuel,
• model,
• matter,
• medium,
• institution,
• level,
• shape,
• mind,
• output,
• conveyance,
• policy,
• container,
• particle,
• portion,
• communications,
• item,
• connection,
• artifact,
• circuitry,
• condition,
• space,
• problem,
• band,
• minority,
• element,
• symbol,
• module,
• function,
• knowledge,
• detector,
• resource,
• asset,
• elements,
• organ,
• formation,
• activity,
• time,
• copolymer,
• fluid,
• pattern,
• map,
• sample,
• defect,
• values,
• molecule,
• step,
• attribute,
• volume,
• sensor,
• syndrome,
• measure,
• semiconductor,
• camera,
• subset,
• input,
• display,
• substance,
• zone,
• device,
• collection,
• times,
• concept,
• control,
• hardware,
• subject,
• community,
• character,
• point,
• dose,
• project,
• package,
• transactions,
• sequence,
• skill,
• program,
• disturbance,
• topic,
• period,
• controller,
• sector,
• set,
• grain,
• devices,
• individual,
• cue,
• system,
• population,
• constraint,
• group,
• movement,
• piece,
• phenomenon,
• receptor,
• market,
• mathematics,
• commodity,
• change,
• interval,
• domain,
• decision,
• sign,
• disorder,
• circuit,
• value,
• building,
• body,
• solid,
• conductor,
• action,
• equipment,
• geometry,
• form,
• industry,
• transformation,
• field,
• cause,
• actuator,
• occurrence,
• choice,
• state,
• structure,
• sphere,
• surface,
• illness,
• request,
• variable,
• support,
• signal,
• meaning,
• intervention,
• taxon,
• category,
• option,
• assets,
• act,
• data,
• quantity,
• area,
• dimension,
• cell,
• material,
• ability,
• product,
• service,
• feature,
• trait,
• thing,
• affection,
• casting,
• part,
• characteristic,
• aggregation,
• type,
• amount,
• factor,
• article,
• component,
• discipline,
• host,
• organelle,