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  2. Homoglyph - Wikipedia

    en.wikipedia.org/wiki/Homoglyph

    The homoglyphs U+0061 a LATIN SMALL LETTER A and U+0430 а CYRILLIC SMALL LETTER A overlaid. In the image, both characters are set in Helvetica LT Std Roman.. In orthography and typography, a homoglyph is one of two or more graphemes, characters, or glyphs with shapes that appear identical or very similar but may have differing meaning.

  3. IDN homograph attack - Wikipedia

    en.wikipedia.org/wiki/IDN_homograph_attack

    An example of an IDN homograph attack; the Latin letters "e" and "a" are replaced with the Cyrillic letters "е" and "а".The internationalized domain name (IDN) homoglyph attack (often written as homograph attack) is a method used by malicious parties to deceive computer users about what remote system they are communicating with, by exploiting the fact that many different characters look ...

  4. Index of coincidence - Wikipedia

    en.wikipedia.org/wiki/Index_of_coincidence

    The chance of drawing a given letter in the text is (number of times that letter appears / length of the text). The chance of drawing that same letter again (without replacement) is (appearances − 1 / text length − 1). The product of these two values gives you the chance of drawing that letter twice in a row.

  5. Duplicate characters in Unicode - Wikipedia

    en.wikipedia.org/wiki/Duplicate_characters_in...

    Unicode aims at encoding graphemes, not individual "meanings" ("semantics") of graphemes, and not glyphs.It is a matter of case-by-case judgement whether such characters should receive separate encoding when used in technical contexts, e.g. Greek letters used as mathematical symbols: thus, the choice to have a "micro-sign" µ separate from Greek μ, but not a "Mega sign" separate from Latin M ...

  6. Ambigram - Wikipedia

    en.wikipedia.org/wiki/Ambigram

    A totem ambigram is an ambigram whose letters are stacked like a totem, most often offering a vertical axis mirror symmetry. This type helps when several letters fit together, but hardly the whole word. For example, in the Maria monogram , the letters M, A and I are individually symmetrical, and the pairing R/A is almost naturally mirroring ...

  7. Word search - Wikipedia

    en.wikipedia.org/wiki/Word_search

    These letters include Q, J, X, and Z. Lastly, the strategy of looking for double letters in the word being searched for (if a word list is provided) proves helpful, because it is easier to spot two identical letters side-by-side than to search for two different letters. If a word list is not provided, a way to find words is to go row by row.

  8. Ligature (writing) - Wikipedia

    en.wikipedia.org/wiki/Ligature_(writing)

    The letter Y (little finger and thumb) overlaps with the other two letters. The Japanese language has a number of obsolete kana ligatures . Of these, only two are widely available ones on computers: one for hiragana , ゟ , which is a vertical writing ligature of the characters よ and り ; and one for katakana , ヿ , which is a vertical ...

  9. List of Unicode characters - Wikipedia

    en.wikipedia.org/wiki/List_of_Unicode_characters

    Letters: Uppercase. U+00D8 Ø 216 0303 0230 Ø Latin Capital letter O with stroke: 0152 U+00D9 Ù 217 0303 0231 Ù Latin Capital letter U with grave: 0153