to put clothes or other things into a suitcase, bag, or box so you can take them somewhere
I always pack my clothes the night before a trip.
"Don't forget to pack your toothbrush," Dad reminded Sam from the hallway.
to fill or press something so that it is tight, solid, or completely full
Children packed snow into a ball to start building a snowman.
The audience packed the theater on opening night.
to travel or hike while carrying your belongings in a backpack, usually for pleasure and on a low budget
After college, she backpacked across South America for six months.
They plan to spend the summer backpacking the Appalachian Trail.
✦ verb use from the noun backpack, first recorded mid-20th century
