stack

PILE
WordClue
LOTpile, load
HEAPpile, mass
LAKELoch Ness
MASSpile, agglomeration
PLUSHwarp pile fabric
STACKpile
SWATHEbattalion, pile
VELVETtype of pile fabric
BATTALIONpile, horde
PIGPENstable, pigsty
ARENAstadium