There’s really no good way to shorten Wren, unless you wanted to just call her W, but that’s kinda George Bush-y.
Famous people named Wren:
Fashion designer L’Wren Scott; children’s author Wren Blackberry
“Wren” was the term for servicewomen in the UK’s Women’s Royal Naval Service, formed in 1917 and integrated into the Royal Navy in 1993.
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