Modifiers matching installation:

• permanent,
• fixed,
• important,
• exterior,
• internal,
• large,
• commercial,
• physical,
• major,
• functional,
• electrical,
• environmental,
• movable,
• base,
• stable,
• military,
• industrial,
• sanitary,
• larger,
• inshore,
• social,
• structural,
• vital,
• self,
• nearby,
• alert,
• special,
• occupied,
• outdoor,
• convenient,
• critical,
• small,
• static,
• complicated,
• advanced,
• corporate,
• medium,
• unique,
• specialized,
• big,
• interactive,
• scientific,
• strategic,
• domestic,
• interior,
• architectural,
• overhead,
• central,
• simple,
• semipermanent,
• off,
• productive,
• real,
• modern,
• smaller,
• difficult,
• individual,
• official,
• defensive,
• harsh,
• controlled,
• avionic,
• peripheral,
• portable,
• nuclear,
• unattended,
• surrounding,
• economic,
• concrete,
• horizontal,
• modular,
• civilian,
• fighting,
• residential,
• thick,
• light,
• particular,
• closed,
• wet,
• sized,
• current,
• sensitive,
• radio,
• key,
• floating,
• audiovisual,
• chemical,
• marine,
• complete,
• minor,
• communal,
• academic,
• impressive,
• additional,
• public,
• inside,
• incidental,
• hazardous,
• mobile,
• outside,
• external,
• limited,
• temporary,
• complex,
• high,
• dynamic,
• linear,
• hydraulic,
• electronic,
• moving,
• exposed,
• recreational,
• secure,
• vertical,
• metallic,
• essential,
• electric,
• isolated,
• ancillary,
• coastal,
• typical,
• multiple,
• technical,
• underground,
• stationary,
• spatial,
• basic,
• new,
• remote,
• underwater,
• aquatic,
• expensive,
• decorative,
• shared,
• unusual,
• single,
• subsurface,
• vulnerable,
• size,
• maritime,
• mechanical,
• sloping,
• institutional,
• auxiliary,
• appropriate,
• down,
• agricultural,
• indoor,
• quick,
• protective,
• federal,
• professional,
• supporting,
• necessary,
• proper,
• tubular,
• unmanned,
• centralized,
• covered,
• technological,
• primary,
• national,

Simple categories matching underwater:

• object,
• shape,
• structure,
• happening,
• life,
• area,
• mission,
• surface,
• mound,
• disturbance,
• creature,
• substrate,
• material,
• worker,
• wonder,
• feature,
• duty,
• equipment,
• unit,
• location,
• organism,
• animal,
• cetacean,
• grass,
• artifact,
• predator,
• instrumentation,
• weaponry,
• information,
• metal,
• gear,
• operation,
• vehicle,
• appendage,
• cave,
• operations,
• activity,
• event,
• plant,
• explosive,
• installation,
• vessel,
• obstruction,
• shock,
• native,
• world,
• connection,
• inhabitant,
• facility,
• ordnance,
• job,
• task,
• article,
• prey,
• means,
• killer,
• construction,
• use,
• formation,
• sport,
• resource,
• mammal,
• weapon,
• heritage,
• missile,
• experience,
• prop,
• substance,
• body,
• function,
• part,
• craft,
• service,
• projection,
• munition,
• work,
• system,