Sweep over is a versatile phrasal verb that can mean a few different things based on context. One common use is to describe a sudden rush of emotion or sensation, such as excitement or fear. Some possible synonyms for this meaning are overwhelm, engulf, or wash over. Another potential use of sweep over is to describe a physical motion, such as brushing something aside or removing debris. In this context, alternatives might include clear away, brush off, or tidy up. The exact synonym used will depend on the specific context and the intended meaning, but each of these options could be a suitable alternative in the appropriate situation.