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| Subject | English | Tamil |
| comp., MS | em dash | நடு முழுக்கோடு (The - character, based on the width of an uppercase M and used primarily to set off sentence elements) |
| comp., MS | em space | em இடம் (A typographical unit of measure that is equal in width to the point size of a particular font. For many fonts, this is equal to the width of a capital M, from which the em space takes its name) |