> “takeaway” is predominantly British and the other two American–although Lynne Murphy’s blog post on the subject notes that “take-out” is used in parts of northern England
I’m approaching 50 and have lived in England my entire life, either in south London or further south (university years notwithstanding). For food, takeaway and takeout have been interchangeable in my circles for as long as I can recall. Takeout has also been used for “alcohol […] bought in a pub for consumption off the premises” since … well, forever.
Meanwhile my partner, who is from the north, says she never used or heard takeout when growing up.