What does "stow away" mean?

Put aside or store something until needed, as in We generally stow away the lawn furniture in the toolshed. [Late 1700s]
Hide oneself aboard ship or in a vehicle in order to get free transportation, as in The youngsters planned to stow away on a freighter but they never even got to the waterfront. This usage gave rise to the noun stowaway. [Mid-1800s]
Greedily consume food or drink, as in Bob sure can stow away a lot in a short time. [Colloquial; mid-1800s]

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