sinpin

sinpin reffers to objects that face directions. walls can easily be sinpin, and so can human faces or any of the front part of an animal. the part of a building that faces the road can be sinpin. sinpin is not used as much as it should be and I encourage speakers to explore its semantic space more. If you have any further usages that aren't mentioned here, please let me know!

sinpin can't be extended into a metaphorical space to talk about time. "tenpo sinpin" might mean future or past to people from different cultures, so in order to use it like that you'd need to build it up by explaining the metaphor. For example, if you framed yourself as facing the past and walking backwards, you could even use "tenpo sinpin" to talk about the past!