fallback
fall‧back /ˈfɔːlbæk $ ˈfɒːl-/
noun [countable]
something that can be used or done if a supply, method etc fails
SYN backup:
It’s wise to have an extra video player as a fallback.
Do you have a fallback option? ⇨ fall back on somebody/something at fall1
fall‧back /ˈfɔːlbæk $ ˈfɒːl-/
noun [countable]something that can be used or done if a supply, method etc fails
SYN backup: