Stockpile

запа́с

zapás

(supply of something kept for future use)

резе́рв

rezérv

(supply of something kept for future use)

шта́бель

štábelʹ

(pile of coal or ore heaped up on the ground after it has been mined)

де́лать запа́сы

délatʹ zapásy

(to accumulate or build up a supply of (something))

нака́пливать

nakáplivatʹ

(to accumulate or build up a supply of (something))

штабели́ровать

štabelírovatʹ

(to accumulate or build up a supply of (something))