Modifiers matching retrovirus:

• complex,
• exogenous,
• important,
• pathogenic,
• persistent,
• smaller,
• epidemic,
• latent,

Simple categories matching smaller:

• game,
• pest,
• mammal,
• animal,
• complex,
• area,
• pond,
• bait,
• item,
• prey,
• bird,
• lapdog,
• sample,
• reptile,
• compartment,
• catalog,
• sphere,
• waterway,
• tuna,
• woodpecker,
• show,
• carnivore,
• dwelling,
• predator,
• embryo,
• cetacean,
• ball,
• nature,
• creature,
• essay,
• pet,
• manuscript,
• shark,
• device,
• center,
• arena,
• concept,
• sacrifice,
• arthropod,
• values,
• touch,
• collection,
• eatery,
• operation,
• zooplankton,
• artery,
• watercourse,
• fire,
• segment,
• mall,
• gun,
• impurity,
• devices,
• deer,
• tyre,
• magazine,
• material,
• enclosure,
• dining-room,
• herbivore,
• furniture,
• ensemble,
• fastener,
• artifact,
• surface,
• object,
• tree,
• set,
• creek,
• boundary,
• rarity,
• pollutant,
• truck,
• pulse,
• watch,
• value,
• surgery,
• transport,
• bay,
• committee,
• process,
• package,
• os,
• province,
• volume,
• bottle,
• marker,
• community,
• task,
• boat,
• assembly,
• precursor,
• medium,
• lure,
• fruit,
• pathogen,
• disaster,
• industry,
• producer,
• distributor,
• leaf,
• livestock,
• door,
• gang,
• difference,
• belongings,
• room,
• saccharide,
• golf-club,
• leak,
• arrangement,
• component,
• limb,
• gastropod,
• potato,
• curio,
• aggregate,
• solute,
• songbird,
• territory,
• analyzer,
• country,
• aggregation,
• food,
• accessory,
• subdivision,
• bean,
• thing,
• host,
• sensor,
• pipe,
• piece,
• obstruction,
• shape,
• pig,
• source,
• indicator,
• map,
• machine,
• textile,
• measure,
• hawk,
• newspaper,
• customer,
• wave,
• poster,
• residue,
• being,
• practice,
• solid,
• crime,
• combination,
• dish,
• studio,
• tribe,
• world,
• works,
• fraction,
• cake,
• home,
• car,
• owl,
• insectivore,
• plant,
• battery,
• settlement,
• antiquity,
• person,
• bivalve,
• vein,
• arms,
• institution,
• microorganism,
• warship,
• jar,
• equipment,
• utensil,
• party,
• space,
• expense,
• scooter,
• memorial,
• restaurant,
• fuel,
• size,
• glasses,
• figure,
• nation,
• bug,
• bike,
• basket,
• brush,
• centrarchid,
• instrument,
• graphics,
• funds,
• course,
• island,
• dog,
• linen,
• order,
• neighbourhood,
• implement,
• theatre,
• treasure,
• kernel,
• movement,
• holding,
• formation,
• venue,
• street,
• rock,
• grass,
• duck,
• seabird,
• text,
• beast,
• cardinal,
• spring,
• centre,
• group,
• household,
• agency,
• compound,
• clothes,
• critter,
• player,
• aircraft,
• housing,
• particle,
• zone,
• firm,
• deposit,
• format,
• drug,
• database,
• artiodactyl,
• cyprinid,
• garden,
• abrasive,
• construction,
• stone,
• blockage,
• epiphyte,
• reward,
• ingredient,
• company,
• racket,
• mustelid,
• shrub,
• unit,
• part,
• windows,
• craft,
• cpu,
• amount,
• aeroplane,
• swimwear,
• hide,
• display,
• effort,
• lizard,
• petrel,
• limo,
• apparel,
• structure,
• intermediate,
• interval,
• network,
• catastrophe,
• roll,
• foliage,
• species,
• sign,
• appendage,
• division,
• ion,
• constituent,
• organisation,
• lake,
• congregation,
• procedure,
• use,
• ornament,
• virus,
• society,
• lodging,
• shorebird,
• retailer,
• projectile,
• difficulty,
• environment,
• nut,
• bag,
• wrasse,
• program,
• commodity,
• theater,
• subgroup,
• entity,
• supermarket,
• perennial,
• grain,
• loach,
• mechanism,
• crater,
• meal,
• substance,
• bow,
• league,
• fish,
• beads,
• heel,
• shelter,
• protist,
• language,
• plate,
• people,
• tank,
• passerine,
• gear,
• pollinator,
• insect,
• museum,
• gathering,
• basin,
• falcon,
• school,
• cat,
• container,
• furnishing,
• domain,
• body,
• gesture,
• particulate,
• meat,
• building,
• tool,
• halibut,
• office,
• vertebrate,
• wheel,
• array,
• importer,
• pool,
• mass,
• rod,
• pan,
• catheter,
• quarry,
• flower,
• detachment,
• library,
• purchase,
• fixture,
• cactus,
• race,
• dimension,
• radical,
• force,
• original,
• cable,
• peer,
• antelope,
• quarters,
• bandwidth,
• town,
• muscle,
• assets,
• scale,
• place,
• market,
• state,
• transformer,
• cause,
• document,
• garment,
• region,
• club,
• change,
• picture,
• offence,
• server,
• fauna,
• sink,
• fiber,
• airline,
• trinket,
• work,
• vessel,
• operations,
• manufacturer,
• gadget,
• line,
• ship,
• installation,
• spider,
• conifer,
• passage,
• post,
• hazard,
• utility,
• fare,
• antenna,
• sport,
• boutique,
• friend,
• fragment,
• vial,
• parasite,
• contaminant,
• drain,
• molecule,
• sector,
• inhabitant,
• business,
• berry,
• feature,
• coil,
• nightshade,
• van,
• bush,
• representation,
• plan,
• store,
• halide,
• invertebrate,
• debt,
• ruin,
• tire,
• toy,
• section,
• wedding,
• biped,
• joint,
• felid,
• action,
• sugar,
• mollusk,
• service,
• atom,
• monkey,
• whale,
• stream,
• canid,
• vehicle,
• pot,
• production,
• administration,
• cell,
• event,
• tent,
• planet,
• shellfish,
• payment,
• stuff,
• level,
• wire,
• location,
• computer,
• watershed,
• block,
• ventilator,
• chapel,
• technology,
• property,
• family,
• organism,
• peripheral,
• site,
• grouping,
• conference,
• outbuilding,
• subject,
• outlet,
• box,
• relative,
• bulb,
• extremity,
• engine,
• salmon,
• weapon,
• proposal,
• residence,
• parrot,
• rv,
• book,
• enterprise,
• fan,
• independent,
• meeting,
• parakeet,
• fighter,
• publication,
• vendor,
• crustacean,
• file,
• band,
• coin,
• macromolecule,
• vegetable,
• district,
• connection,
• metal,
• seed,
• user,
• appliance,
• ungulate,
• eukaryote,
• benefit,
• college,
• details,
• light,
• ruminant,
• snake,
• rocket,
• period,
• alkyl,
• horse,
• manual,
• guitar,
• opening,
• happening,
• canine,
• hound,
• marsupial,
• village,
• population,
• germ,
• eyes,
• protein,
• paraphernalia,
• ngo,
• firework,
• jurisdiction,
• job,
• tissue,
• programme,
• retrovirus,
• portion,
• gourd,
• automobile,
• receptacle,
• raptor,
• screen,
• shop,
• product,
• establishment,
• creditor,
• blossom,
• design,
• finch,
• load,
• municipality,
• article,
• incident,
• oilseed,
• requirement,
• microbe,
• trade,
• activity,
• artefact,
• hotel,
• fly,
• loan,
• facility,
• way,
• city,
• plane,
• application,
• function,
• tract,
• wallaby,
• carrier,
• denomination,
• system,
• waterfowl,
• image,
• sunfish,
• project,
• filter,
• marking,
• rodent,
• substrate,
• bakery,
• quantity,
• organization,
• watercraft,
• copier,