IPA: /ˈsuːtkeɪs/
KK: /ˈsutˌkeɪs/
A rectangular bag used for carrying clothes and personal items when traveling.
She packed her clothes into the suitcase for the trip.
Suitcase originates from the combination of 'suit' (from Old French *suite*, meaning a sequence or following) and 'case' (from Latin *casus*, meaning a fall or an event). The word 'suitcase' refers to a case that holds a sequence of items for travel.
Think of a 'suit' as a collection of items you need for a journey, and a 'case' as a container for those items. This helps you remember that a suitcase is a case for your travel belongings.