definition of
fall back

[1] #1 fall back v. fall backwards and down. wn

[2] #2 fall back v. hang (back) or fall (behind) in movement, progress, development, etc.. wn

[3] #3 fall back v. move back and away from; "The enemy fell back". wn

[4] #4 fall back v. retreat. wn

[5] #5 fall back v. have recourse to; "The government resorted to rationing meat". wn