prep. Abbreviation for id est. Latin meaning "that is," or "that is to say." Used to explain or expand a general term and should not be confused with "e.g." which refers to "for example." Found on http://www.encyclo.co.uk/local/21213
id est; i.e. That is [to say]. Introduces a definition. Use i.e. only when rephrasing a statement to make it more understandable. The most frequent mistake made by people who don't really know what i.e. means leads to confusion between i.e. and e.g.; the abbreviation of exempli gratia, 'for example'. Found on http://www.wordinfo.info/words/index/info/view_unit/3471/
Abbreviation for id est (Latin `that is`), used to give an example. i.e. tends to interrupt the flow of a sentence, and its use is best kept to a minimum Found on https://www.encyclo.co.uk/local/21221