1. as another option or possibility; instead
2. in turns; one after the other in succession

Examples

• You can take the bus, or alternatively, walk to school.
• We could go to the movies, or alternatively, stay home and watch TV.
• The medicine can be taken with food or alternatively on an empty stomach.
• You can pay by credit card or alternatively by cash.
• The lights flashed alternatively red and blue.
• The two speakers presented their arguments alternatively.
• Students can submit their work online or alternatively hand it in during class.