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Synonyms

tails

American  
[teylz] / teɪlz /

adjective

  1. (of a coin) with the reverse facing up.

    On the next toss, the coin came up tails.


noun

  1. tailcoat.

tails British  
/ teɪlz /

plural noun

  1. an informal name for tail coat

"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

interjection

  1. with the reverse side of a coin uppermost: used as a call before tossing a coin Compare heads

"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

Etymology

Origin of tails

First recorded in 1675–85; tail 1 + -s 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

My parents were left with a choice: Move back to Argentina with their tails between their legs, or start again where they were.

From Salon • Apr. 4, 2026

England will start the tournament with their tails up after beating co-hosts Sri Lanka in both one-day international and T20 series -- they have lost just one T20 series since the 2024 World Cup.

From Barron's • Feb. 3, 2026

While these models successfully describe simple, comet-like gas tails, they struggle to recreate the double-tailed structure observed around WASP-121b.

From Science Daily • Jan. 20, 2026

In 1963 a “Gentleman’s C” was common, but students had to work their tails off to get a B. A’s were rare: only 10% of marks in 1963.

From The Wall Street Journal • Dec. 25, 2025

Inside, the grooms were brushing down beautiful, glossy horses, or cleaning their polished hooves, or braiding their long tails.

From Anya and the Nightingale by Sofiya Pasternack