| Main Entry: | urban exploration |
| Part of Speech: | n |
| Definition: | the study of parts of civilization that are normally unseen or off-limits, such as abandoned structures, drains, sewers, tunnels, etc.; also called infiltration, reality hacking, urban caving, urban spelunking, urbex |
| an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle. |
| a chattering or flighty, light-headed person. |
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