1 will do | Definition of will do

will do

idiom

Definition of will do

1 : to provide what is needed : satisfy a need I don't need any more cake, thank you. One piece will do (for me). I'd prefer to use glue, but tape will do.
2 used as an informal way of saying that one will be able to do something one is asked to do to "Can you finish it by tomorrow?" "Sure, boss, will do!"