Modifiers matching vessel:

• fit,
• narrow,
• large,
• small,
• common,
• metal,
• smaller,
• wooden,
• thick,
• classical,
• portable,
• oriented,
• cultural,
• commercial,
• heavy,
• floating,
• unique,
• vital,
• thin,
• suitable,
• ceramic,
• mature,
• muscular,
• marine,
• working,
• several,
• anatomical,
• industrial,
• hollow,
• adjacent,
• chemical,
• naval,
• coastal,
• recreational,
• branching,
• passive,
• cardiac,
• ornamental,
• open,
• great,
• sterile,
• domestic,
• major,
• critical,
• important,
• slower,
• systemic,
• advanced,
• silver,
• flying,
• fluid,
• military,
• public,
• normal,
• typical,
• embryonic,
• gold,
• sacred,
• supporting,
• moving,
• lovely,
• peripheral,
• medical,
• cerebrovascular,
• conventional,
• cerebral,
• cylindrical,
• surrounding,
• nuclear,
• elastic,
• intermediate,
• sanitary,
• appropriate,
• plain,
• nautical,
• inflatable,
• difficult,
• simple,
• straight,
• motorized,
• unpowered,
• top,
• specialized,
• disabled,
• light,
• round,
• modern,
• tall,
• arterial,
• oceangoing,
• moveable,
• sized,
• refractory,
• tubular,
• resistant,
• specialised,
• seagoing,
• distensible,
• imperial,
• vulnerable,
• noncombatant,
• inside,
• maneuverable,
• combatant,
• delicate,
• expensive,
• closed,
• buoyant,
• japanese,
• tight,
• metallic,
• powerful,
• shallow,
• central,
• empty,
• adult,
• vascular,
• ordinary,
• natural,
• private,
• greek,
• fast,
• developing,
• larger,
• fixed,
• airborne,
• inaccessible,
• complex,
• thoracic,
• everyday,
• auxiliary,
• biological,
• single,
• close,
• foreign,
• curved,
• utilitarian,
• clean,
• concrete,
• maritime,
• awkward,
• physical,
• interesting,
• ceremonial,
• functional,
• special,
• governmental,
• voluntary,
• nearby,
• sensitive,
• experimental,
• unusual,
• underwater,
• sophisticated,
• physiological,
• local,
• demanding,
• traditional,
• individual,
• faster,
• liturgical,

Simple categories matching voluntary:

• market,
• association,
• organization,
• information,
• participation,
• item,
• organisation,
• activity,
• vessel,
• assistance,
• easement,
• helper,
• abstinence,
• effort,
• group,
• project,
• body,
• society,
• committee,
• sector,
• club,
• contribution,
• arrangement,
• system,
• service,
• grouping,
• measure,
• school,
• donation,
• behaviour,
• option,
• choice,
• movement,
• force,
• action,
• endeavor,
• task,
• alternative,
• control,
• agreement,
• transport,
• deposit,
• agency,
• migrant,
• institution,
• work,
• behavior,
• unit,
• motion,