Oxford Dictionary English fall back on phrasal verbphrasal verb Add to my wordlistjump to other resultsPhrasal Verbsfall back on somebody/something Add to my wordlistjump to other results[no passive] to go to somebody for support; to have something to use when you are in difficulty I have a little money in the bank to fall back on. She fell back on her usual excuse of having no time. related noun fallback oxfordlearnersdictionaries.com
