IPA: /ˈfɔːl.bæk/
KK: /ˈfɔlˌbæk/
Relating to a backup option or alternative that can be used if the primary choice fails or is not available.
The team had a fallback plan in case their first strategy didn't work out.
A plan or option that can be used if the main one fails or is not available.
If the main plan doesn't work, we have a fallback option ready.
Fallback → It is formed from "fall" (from Old English "feallan", meaning to drop or descend) and "back" (meaning in the direction of the rear). The word "fallback" refers to a situation where one returns to a previous position or option when the current one fails or is unavailable.
Think of the idea of 'falling back' to a previous option when things don't go as planned.