B1
to remove things from a suitcase, bag or box
Dictionary examples:
He unpacked his camping gear and realized he'd forgotten the tent! (0.0)
She unpacked her gym bag and found a pizza instead of her workout clothes. (0.0)
Tom unpacked his lunch box and found his mom had packed only broccoli. (0.0)
I haven't even had time to unpack my suitcase/clothes/bag. (25.7)