pack ‧ er /ˈpækə $ -ər/ BrE AmE noun [countable]
[ Word Family: noun : ↑ pack , ↑ package , ↑ packaging , ↑ packet , ↑ packing , ↑ packer ; verb : ↑ pack ≠ ↑ unpack , ↑ package ; adjective : ↑ packed ]
someone who works in a factory, putting things into containers