"See-in" can be replaced with several synonyms depending on the context in which it is used. For instance, it can be replaced with "perceive," "detect," "observe," "discern," or "spot" when describing the ability to notice or become aware of something. "Foresee," "anticipate," "envision," or "predict" can be used to indicate the ability to predict something that is going to happen or that may occur in the future. Similarly, "visualize," "imagine," "picture," or "envision" can be used when discussing the ability to create a mental image of something, even if it is not physically present. Overall, there are many suitable synonyms for "see-in," each with their own nuanced meanings and connotations.