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1d

Meaning

Noun

In Football (American):
Initialism of first down.
In British English & Irish English:
Abbreviation of one
. (a
with
e value of 1 pence/penny; 1/240th of a
, in
, never used for 'one new
').

Adj

Initialism of one-dimensional.

Name

The British
One Direction.
Sourced from
Wiktionary
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