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.