None, really, except that scent usually would denote a pleasant smell, while odor could be used for one that is pleasant or unpleasant. As an aside, there is a word for the smell you notice when it rains after a dry spell, though you rarely encounter it: petrichor .
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Blue Jaythere is a word for the smell you notice when it rains after a dry spell, though you rarely encounter it: petrichor.I love that word, mainly because I love the meaning. I use it whenever I can.
PhilipI love that word, mainly because I love the meaning. I use it whenever I can.Perhaps it will become more popular if we all start using it.