The definition of a souvenir is something you keep to remind you of a trip or other event.
A snow globe you bring back from your vacation is an example of a souvenir.
something kept or serving as a reminder of a place, person, or occasion; keepsake; memento
Origin of souvenirFr, origin, originally infinitive , to remember from Classical Latin subvenire, to come to mind: see subvene
A token of remembrance; a memento.
Origin of souvenirFrench from Old French to recall, memory from Latin subvenīre to come to mind sub- sub- venīre to come ; see gwā- in Indo-European roots.
From French souvenir.