(idiomatic) To record that someone has offered to help, or contribute something.
Put me down for one of the drivers.
You can put my wife down for $10
Put-down-for Sentence Examples
This derangement being carefully noted, another bore to the outcrop on the same principle is put down for the purpose of proving the seam C; the nature of the strata at first is found to agree with the latter part of that bored through in No.
He was a faithful servant of Ali and put down for him the revolt excited by Moawiya's partisans in Basra.
Have your finances together and figure out just how much money you can put down for the foreclosed property.