How to Use I.e. vs E.g. Correctly
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One of the most common questions we receive from clients is: "Are the abbreviations i.e. and e.g. interchangeable?"
They are not. Each has a specific meaning and use.
There are standard abbreviations to use when writing a business document (e.g., an email, memo, or text message) and you need to add clarifying information (i.e., grammar rules and tips):
- i.e. is the customary abbreviation for "that is." It is derived from the Latin term "id est."
- e.g. is the customary abbreviation for "for example." It is derived from the Latin phrase "exempli gratia."
So I don't have to worry about remembering the Latin derivations, I simply remember that example and e.g. both start with the letter e. E=example=e.g. Therefore, examples use e.g. while clarifications use i.e..
e.g. in an example sentence
The marketing team will require only the basic presentation materials for the Atlanta trip (e.g., Product Benefits PowerPoint, Competitor Comparison Checklist). Be sure everyone receives full travel itineraries by tomorrow.
i.e. in an example sentence
We eliminated the Alexa shoe from our upcoming catalog after customer complaints alerted us of quality issues (i.e., the red ink was not colorfast). When you meet with department store managers, I recommend substituting the similar Daniella shoe.
Important clarifications
- Only use these abbreviated forms e.g. and i.e. in more informal or expedient documents. It is always correct to simply write out, "for example," or "that is."
- Since these are abbreviations, they do require a period after each letter.
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Don't forget that nearly all style guides state that i.e., and e.g., require a comma placed after the last period.
If you are looking for more tips and tricks check out our full list of business writing tips.
