What is a carry-on bag?

[Stupy]

English Language Tests, Intermediate level

ESL/EFL Test #807 "Airport Terminology (3)", question 10

I just bought new ......... last week in anticipation of my trip. I got a new suit case, a new carry-on bag, and a backpack in the set.

(a) lumber
(b) storage
(c) carriage
(d) luggage

English Language Tests, Intermediate level

ESL/EFL Test #807 "Airport Terminology (3)", answer 10

I just bought new luggage last week in anticipation of my trip. I got a new suit case, a new carry-on bag, and a backpack in the set.

Correct answer: (d) luggage
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carry-on bag

[Mister Micawber]

A bag that you carry onto the airplane yourself instead of checking it in at the check-in counter.
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Native English teacher at Mister Micawber's

[Daveschappell]

A carry on bag usually needs to be of a certain size (so that it fits in the storage compartment above your seat, or under the seat in front of your feet)