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We found 3 dictionaries with English definitions that include the word 1-2-3:
Click on the first link on a line below to go directly to a page where "1-2-3" is defined.

General (1 matching dictionary)

1. 1-2-3: Dictionary.com [home, info]

Computing (2 matching dictionaries)

2. 1-2-3: Free On-line Dictionary of Computing [home, info]
3. 1-2-3: Encyclopedia [home, info]

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