Index: graphspell-js/str_transform.js
==================================================================
--- graphspell-js/str_transform.js
+++ graphspell-js/str_transform.js
@@ -44,11 +44,13 @@
         ['ā', 'a'],  ['ē', 'é'],  ['ī', 'i'],  ['ō', 'o'],  ['ū', 'u'],  ['ȳ', 'y'],
         ['ç', 'c'],  ['ñ', 'n'],
         ['œ', 'oe'], ['æ', 'ae'],
         ['ſ', 's'],  ['ffi', 'ffi'],  ['ffl', 'ffl'],  ['ff', 'ff'],  ['ſt', 'ft'],  ['fi', 'fi'],  ['fl', 'fl'],  ['st', 'st'],
         ["⁰", "0"], ["¹", "1"], ["²", "2"], ["³", "3"], ["⁴", "4"], ["⁵", "5"], ["⁶", "6"], ["⁷", "7"], ["⁸", "8"], ["⁹", "9"],
-        ["₀", "0"], ["₁", "1"], ["₂", "2"], ["₃", "3"], ["₄", "4"], ["₅", "5"], ["₆", "6"], ["₇", "7"], ["₈", "8"], ["₉", "9"]
+        ["₀", "0"], ["₁", "1"], ["₂", "2"], ["₃", "3"], ["₄", "4"], ["₅", "5"], ["₆", "6"], ["₇", "7"], ["₈", "8"], ["₉", "9"],
+        ["’", ""], ["'", ""], ["ʼ", ""], ["‘", ""], ["‛", ""], ["´", ""], ["`", ""], ["′", ""], ["‵", ""], ["՚", ""], ["ꞌ", ""], ["Ꞌ", ""],
+        ["-", ""]
     ]),
 
     simplifyWord: function (sWord) {
         // word simplication before calculating distance between words
         sWord = sWord.toLowerCase();

Index: graphspell/str_transform.py
==================================================================
--- graphspell/str_transform.py
+++ graphspell/str_transform.py
@@ -36,11 +36,13 @@
     'ā': 'a',  'ē': 'é',  'ī': 'i',  'ō': 'o',  'ū': 'u',  'ȳ': 'y',
     'ç': 'c',  'ñ': 'n',
     'œ': 'oe',  'æ': 'ae',
     'ſ': 's',  'ffi': 'ffi',  'ffl': 'ffl',  'ff': 'ff',  'ſt': 'ft',  'fi': 'fi',  'fl': 'fl',  'st': 'st',
     "⁰": "0", "¹": "1", "²": "2", "³": "3", "⁴": "4", "⁵": "5", "⁶": "6", "⁷": "7", "⁸": "8", "⁹": "9",
-    "₀": "0", "₁": "1", "₂": "2", "₃": "3", "₄": "4", "₅": "5", "₆": "6", "₇": "7", "₈": "8", "₉": "9"
+    "₀": "0", "₁": "1", "₂": "2", "₃": "3", "₄": "4", "₅": "5", "₆": "6", "₇": "7", "₈": "8", "₉": "9",
+    "’": "", "'": "", "ʼ": "", "‘": "", "‛": "", "´": "", "`": "", "′": "", "‵": "", "՚": "", "ꞌ": "", "Ꞌ": "",
+    "-": ""
 })
 
 def simplifyWord (sWord):
     "word simplication before calculating distance between words"
     sWord = sWord.lower().translate(_xTransCharsForSimplification)