a close-fitting, low-cut top having shoulder straps and often made of lightweight, knitted fabric.
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Origin of tank top
First recorded in 1945–50
Also called tank.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for tank top
a sleeveless upper garment with wide shoulder straps and a low neck, usually worn over a shirt, blouse, or jumper
Word Origin for tank top
C20: named after tank suits, one-piece bathing costumes of the 1920s worn in tanks or swimming pools
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012