boat:store::sail:_____________
(hint) Look at the word "sail"
The relationship between "boat" and "store" is that a boat can be stored in a store. Similarly, the word "sail" is part of a larger word or phrase that has a similar relationship. To find the missing word or phrase, we can consider what can be sailed using a sail.
One word that fits this relationship is "boat." A boat can be sailed using a sail, so the missing word would be "boat."
Another possible answer could be "ship," as ships also use sails to navigate through water.
In summary, the missing word in the analogy "boat:store::sail:_____________" could be either "boat" or "ship" based on the relationship between sails and water vessels.