noun
luggage rack; overhead compartment
Refers to the shelf or compartment for carry-on luggage in trains, buses, or airplanes.
新幹線の手荷物棚にスーツケースを置いた。
I put my suitcase on the luggage rack of the Shinkansen.
飛行機の手荷物棚は、離着陸時には閉めてください。
Please close the overhead compartment during takeoff and landing.
Compound of 手荷物 (carry-on luggage) and 棚 (shelf).