Modifiers matching ship:

• large,
• small,
• powerful,
• strong,
• major,
• conventional,
• specialised,
• heavy,
• single,
• combatant,
• effective,
• fighting,
• smaller,
• naval,
• complex,
• flatbottomed,
• special,
• larger,
• modern,
• specialized,
• big,
• military,
• working,
• light,
• faster,
• size,
• heavier,
• commercial,
• auxiliary,
• individual,
• public,
• historic,
• marine,
• fast,
• slower,
• industrial,
• oceangoing,
• medium,

Simple categories matching effective:

• drug,
• measure,
• nutrient,
• medium,
• modality,
• control,
• remedy,
• ministry,
• treatment,
• message,
• communications,
• chemical,
• service,
• communication,
• document,
• substance,
• structure,
• means,
• property,
• component,
• therapy,
• dose,
• motivation,
• action,
• part,
• implementation,
• bactericide,
• metal,
• care,
• antibiotic,
• practice,
• activity,
• anxiolytic,
• weapon,
• information,
• neuroleptic,
• system,
• gear,
• event,
• use,
• leadership,
• skill,
• item,
• license,
• compound,
• psychotherapy,
• microbe,
• response,
• area,
• meeting,
• arms,
• group,
• way,
• medicine,
• gun,
• medication,
• material,
• instruction,
• theory,
• constituent,
• improvement,
• ship,
• engagement,
• exercise,
• contraceptive,
• ingredient,
• process,
• presentation,
• antipsychotic,
• procedure,
• intervention,
• agent,
• pharmaceutical,
• movement,
• method,
• writing,
• program,
• barrier,