Halfwidth vs. Alphanumeric

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Difference Between Halfwidth and Alphanumeric
Halfwidthadjective
Of a text character, occupying the space of half of a fullwidth character, or one "normal" text column.
Alphanumericadjective
Consisting of, or limited to, letters and/or numbers, especially the characters A to Z (lowercase and uppercase) and 0 to 9.
Halfwidthnoun
(chemistry) The width of a spectroscopic peak at half its height
Alphanumericadjective
Consisting of these characters plus punctuation and other special characters.
Alphanumericnoun
An alphanumeric character.
Alphanumericadjective
of or pertaining to alphanumeric characters
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