Modifiers matching boundary:

• convenient,
• structural,
• natural,
• physical,
• hierarchical,
• atmospheric,
• artificial,
• significant,
• vertical,
• distinct,
• governing,
• visual,
• biological,
• geopolitical,
• solid,
• nonconducting,
• smaller,
• external,
• horizontal,
• nearby,
• geographical,
• complex,
• single,
• spherical,
• critical,
• administrative,
• jurisdictional,
• hard,
• moving,
• political,
• semitransparent,
• outer,
• simple,
• real,
• spatial,
• crystalline,
• fixed,
• hexagonal,
• permanent,
• internal,
• sharp,
• cultural,
• smooth,
• static,
• geological,
• ecological,
• rigid,
• irregular,
• oceanic,
• front,
• logical,
• hydraulic,
• clear,
• syntactic,
• legal,
• historical,
• curved,

Simple categories matching geographical:

• area,
• idea,
• location,
• point,
• code,
• unit,
• grounds,
• asymmetry,
• meaning,
• region,
• object,
• marker,
• direction,
• imagery,
• activity,
• practice,
• concept,
• topic,
• entity,
• element,
• body,
• grouping,
• class,
• community,
• feature,
• shape,
• skill,
• event,
• space,
• formation,
• market,
• information,
• material,
• level,
• education,
• boundary,
• variable,
• phenomenon,
• condition,
• state,
• works,
• property,
• peculiarity,
• setting,
• limit,
• position,
• work,
• place,
• distribution,
• jurisdiction,
• map,
• reference,
• form,
• dimension,
• item,
• occurrence,
• terms,
• network,
• sector,
• attribute,
• characteristic,
• subject,
• knowledge,
• subdivision,
• domain,
• layer,
• structure,
• site,
• science,
• change,
• zone,
• data,
• matter,