囤积

囤积	tún jī	to stock up / to lay in supplies / to hoard (for speculation) / to corner the market in sth
囤	dùn	bin for grain
囤	tún	to store; to hoard
积	jī	to amass; to accumulate; to store up / (math.) product (the result of multiplication) / (TCM) constipation; indigestion