fallbackfall·back /ˈfɔːlbækˈfɒːl-/ noun [countableC]1another word for FALL2fallback inThe March consumer price index is also expected to benefit from a fallback in clothing prices.
2something that can be done if the original plan does not succeed, or that can be used if the thing that you want is not availableNobody admits to having a fallback position in case European monetary union does not work out.
Fallbacks are essential to ensure you are not putting your home at risk if your saving plans go wrong.