noun (n)

• a workman employed to pack things into containers(noun.person)

  Synonym:
  bagger, boxer
  

  source: wordnet30
• a wholesaler in the meat-packing business(noun.person)

  Synonym:
  meat packer
  

  source: wordnet30
• a hiker who wears a backpack(noun.person)

  Synonym:
  backpacker
  

  source: wordnet30
• A person whose business is to pack things; especially, one who packs food for preservation; as, a pork packer.(noun)

  source: webster1913
• A ring of packing or a special device to render gas-tight and water-tight the space between the tubing and bore of an oil well.(noun)

  source: webster1913