Lay away and Pile up

Lay away verb - To put (something of future use or value) in a safe or secret place.

Pile up and lay away are semantically related in hoard topic. In some cases you can use "Pile up" instead a verb "Lay away", when it comes to topics like put away, economize.

Pile up verb - Arrange into piles or stacks.

Lay away and pile up are semantically related in hoard topic. Sometimes you can use "Lay away" instead a verb "Pile up", if it concerns topics such as put away, economize.