Potentially confusing or technically problematic characters |
Category coded form (direct form) Notes
Miscellany &amp; (&) &lt; (<) &gt; (>) &#91; ([) &#93; (]) &apos; (') &#124; (|) Use these characters directly in general, unless they interfere with HTML or wiki markup. Apostrophes and pipe symbols can alternatively be coded with ((')) and ((!)) or ((pipe)). See also character-substitution templates and WP:ENCODE.
Greek letters &Alpha; (Α) &Beta; (Β) &Epsilon; (Ε) &Zeta; (Ζ) &Eta; (Η) &Iota; (Ι) &Kappa; (Κ) &Mu; (Μ) &Nu; (Ν) &Omicron; (Ο) &Rho; (Ρ) &Tau; (Τ) &Upsilon; (Υ) &Chi; (Χ) &kappa; (κ) &omicron; (ο) &rho; (ρ) In isolation, use coded forms to avoid confusion with similar-looking Latin letters; in a Greek word or text, use the direct characters.
Quotes &lsquo; () &rsquo; () &sbquo; () &ldquo; () &rdquo; () &bdquo; () &acute; (´) &prime; () &Prime; () &#96; (`) Can be confused with straight quotes (" and '), commas, and with one another. MOS:STRAIGHT generally requires conversion to straight quotes, except when discussing the characters themselves or sometimes with non-English languages. See next row for prime characters.
Apostrophe-like ' ` ´ ʻ ʼ ʽ ʾ ʼ ʽ ʻ ʼ
Dashes, minuses, hyphens &ndash; () &mdash; () &minus; () - (hyphen) &shy; (soft hyphen) Can be confused with one another. For dashes and minuses, both forms are used (as well as ((endash)) and ((emdash))). Soft hyphens should always be coded with the HTML entity or template. Plain hyphens are usually direct, though at times ((hyphen)) may be preferable (e.g. Help:CS1#Pages). See MOS:DASH, MOS:SHY, and MOS:MINUS for guidelines.
Whitespace &nbsp; &emsp; &ensp; &thinsp; &hairsp; &zwj; &zwnj; In direct form these are nearly impossible to distinguish from a normal space. See also MOS:NBSP.
Non-printing &lrm; &rlm; In direct form these are nearly impossible to identify. See MOS:RTL.
Mathematics-related &and; () &or; () &lang; () &rang; () Can be confused with x ^ v < >. In some cases TeX markup is preferred to Unicode characters; see MOS:FORMULA. Use ((angbr)) instead of ) / ()
Dots &sdot; () &middot; (·) &bull; () Can be confused with one another. Interpuncts (&middot;) are common in horizontal lists and to indicate syllables in words. Multiplication dots (&sdot;) are used for math. In practice, the dots are used directly instead of the HTML entities.