v-mail noun the use of microfilm to send large amounts of mail to American troops overseas during World War 2 US,1942 As always, “V” stood for “victory.”.
But for women during the war it would have been almost unpatriotic not to regularly write V-mail expressing encouragement and hope and loving lies[.] — Guy Talese, ThyNeighbor’sWife, p. 61, 1980