Modifiers matching transport:

• private,
• modern,
• moving,
• personal,
• medical,
• electric,
• local,
• lightweight,
• miscellaneous,
• motorized,
• motor,
• passive,
• military,
• recreational,
• fluid,
• mobile,
• sized,
• slow,
• efficient,
• everyday,
• heavy,
• inside,
• microscopic,
• animal,
• accessible,
• mechanical,
• individual,
• conventional,
• smaller,
• external,
• small,
• heavier,
• urban,
• physical,
• convenient,
• expensive,
• simple,
• underlying,
• public,
• specialized,
• municipal,
• motorised,
• international,
• out,
• combatant,
• usual,
• regional,
• intracellular,
• sustainable,
• marine,
• manned,
• vehicular,
• portable,
• voluntary,
• insecure,
• continuous,
• capable,
• atomic,
• new,
• molecular,
• fast,
• internal,
• special,
• vertical,
• light,
• alternative,
• commercial,
• mechanised,
• rapid,
• metallic,

Simple categories matching efficient:

• service,
• equipment,
• gear,
• appliance,
• laser,
• creature,
• meat,
• product,
• business,
• utility,
• means,
• engine,
• vehicle,
• activity,
• energy,
• ionization,
• fixture,
• transport,
• network,
• way,
• practice,
• fuel,
• performance,
• process,
• automobile,
• system,
• manner,
• radiator,
• commodity,
• unit,
• action,
• container,
• device,
• measure,
• technology,
• item,
• component,
• thing,
• machine,
• stove,
• facility,
• ministry,
• port,
• ballast,
• organization,
• institution,
• truck,