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Bag
Types of Bags
Know that bags can vary widely from purses to large suitcases. Context clues help determine size and type. 
Carry Multiple Items
'Bag' implies you can carry multiple items at once, unlike a 'bottle' or 'box' which suggests specific contents. 
Cultural Variance
Some English-speaking cultures prefer 'bag' for shopping and 'purse' for personal items; others use 'bag' for both. 