If Master is used as a title for writing the name of a young boy (as in Master William), what is used before the name of a young girl?
'Miss' can be used before the name of a young girl because 'Miss' is a title for any girl (irrespective of her age) who is unmarried. Another title is 'Ms'if the girl wants her to be called by, but usually, 'Miss' is preferable.
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