Category Nuances matching obstruction:

• permanent,
• past,
• isolated,
• smaller,
• physical,
• internal,
• dense,
• simple,
• visible,
• topical,
• solid,
• temporary,
• fixed,
• large,
• vertical,
• small,
• visual,
• natural,
• artificial,
• nearby,
• major,
• hard,
• hazardous,
• opaque,
• level,
• up,
• overhead,
• immovable,
• taller,
• unusual,
• upright,
• metal,
• terrestrial,
• hidden,
• typical,
• bigger,
• layer,
• minor,
• impenetrable,
• hydraulic,
• discrete,
• nasal,
• underground,
• movable,
• spatial,
• short,
• urethral,
• environmental,
• common,
• relevant,
• lighted,
• additional,
• elongated,
• insurmountable,
• surrounding,
• structural,
• removable,
• low,
• featureless,
• over,
• current,
• geographic,
• local,
• rigid,
• tall,
• under,
• lateral,
• multiple,
• raised,
• horizontal,
• underwater,
• linear,
• significant,
• virtual,
• cooler,
• adjacent,
• indoor,
• mechanical,
• clear,
• external,
• outdoor,
• subsurface,
• irregular,
• electrical,
• larger,

Members for simple category obstruction:

• escarpment,
• wall,
• television_tower,
• surrounding_building,
• building,
• road_embankment,
• fence,
• yield_sign,
• road_sign,
• jetty,
• column,
• obstacle,
• cooling_coil,
• hill,
• surge_wall,
• building_structure,
• pier_wall,
• post_box,
• small_hill,
• billboard,
• mezzanine,
• silo,
• prostate_obstruction,
• machine_shed,
• beaver_dam,
• closet,
• door,
• sign,
• adjacent_building,
• platform,
• shear_wall,
• island_barrier,
• harbour,
• road_works,
• dam,
• ward,
• dormer,
• tv_tower,
• gantry,
• levee,
• galley,
• harbor,
• unauthorized_sign,
• blood-vessel_closure,
• low_wall,
• large_building,
• bridge_abutment,
• building_column,
• iron_fence,
• overpass,
• control_gates,
• foundation,
• cubicle,
• wooden_structure,
• barrow,
• tall_building,
• fencing,
• house,
• radio_tower,
• foreign_body,
• seawall,
• structure,
• calloused_area,
• median_barrier,
• hedge,
• roof_overhang,
• concrete_barrier,
• big_hill,
• heavy_door,
• earthen_embankment,
• drainage_structure,
• soft_partition,
• reef_structure,
• polymer_complex,
• partition_wall,
• balcony,
• coolant_tank,
• fireplace,
• wire_fence,
• old_foundation,
• tower,
• news_rack,
• branch,
• prior_surgery,
• high_building,
• railing,
• earth_mound,
• vertical_window,
• screen,
• tank,
• battered_wall,
• garage_door,
• bowel_blockage,
• high_fence,
• pit,
• coral_head,
• huge_hill,
• sprinkler_head,
• gully_pit,
• mucous_plug,
• brickwork,
• concrete_wall,
• tool_shed,
• structural_frame,
• plaster_wall,
• old_car,
• housing,
• immobile_block,
• dense_bridge,
• snowbank,
• safety_barrier,
• corner,
• cellar,
• limb,
• keel_cooler,
• weir,
• heavy_branch,
• boss,
• open_door,
• breakwater,
• hoarding,
• steel_structure,
• existing_tank,
• similar_obstruction,
• pipe_flange,
• partition,
• flange,
• tunnel_wall,
• hoops,
• log_complex,
• construction,
• island_cabinet,
• tall_hedge,
• water_obstacle,
• monument,
• deck,
• bladder_wall,
• artificial_embankment,
• bridge,
• illegal_structure,
• structural_overhang,
• production_platform,
• irrigation_structure,
• steel_fence,
• campus_setting,
• large_plant,
• guard_rail,
• car,
• nearby_building,
• embankment,
• blockage,
• masonry,
• pylon,
• barricade,
• garage,
• low_hill,
• rail_overpass,
• windbreak,
• basement,
• cabinet,
• shelter,
• impassable_door,
• electrical_cabinet,
• overhang,
• flood_barrier,
• high_hill,
• bedrock_dike,
• teeth,
• parked_car,
• hangar,
• surgery,
• electrical_box,
• top,
• metal_wall,
• brick_wall,
• guardrail,
• floor,
• pipe_gantry,
• dynamic_obstruction,
• prostatic_obstruction,
• controller_cabinet,
• fuel_tank,
• multistorey_building,
• clean_wall,
• window,
• skyscraper,
• junction_box,
• bulkhead,
• factory,
• roof_truss,
• pen,
• joint,
• septic_tank,
• cross_arm,
• building_foundation,
• bridge_truss,
• scoreboard,
• cable_support,
• building_overhang,
• gates,
• jersey_barrier,
• privacy_wall,
• ice,
• protective_screen,
• plaque,
• tree_limb,
• accessory_building,
• body,
• identification_sign,
• dwelling,
• groin,
• building_wall,
• paper_sign,
• parking_garage,
• auxiliary_deck,
• truss,
• pull_box,
• support,
• skylight,
• barrier,
• building_support,
• spiked_floor,
• shed,
• bed,
• vertical_wall,
• canyon_wall,
• drink_fountain,
• radio_interference,
• tent,
• structure_overhang,
• trailer_bed,
• gas_platform,
• storage_shed,
• bone_structure,
• dyke,
• plant,
• bar,
• large_limb,
• concrete_foundation,
• catenary_support,
• pillar,
• wooded_area,
• windows,
• multistory_building,
• toolshed,
• bolt_head,
• carport,
• metal_support,