noun
baggage check; claim ticket
A token or receipt given when leaving luggage at a station or hotel, used to reclaim it later. Now somewhat dated; modern Japanese often uses 手荷物預かり証 or similar.
from English check
駅で荷物を預けたら、チッキを渡された。
When I left my luggage at the station, I was handed a baggage check.
noun
checked baggage; checking luggage
Refers to the act of checking baggage or the baggage itself that has been checked. This usage is also dated; modern terms like 預け荷物 are more common.
チッキで送った荷物がまだ届かない。
The luggage I sent as checked baggage hasn't arrived yet.