e.g. and i.e. - the difference

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e.g. / i.e.

 
E.g. means 'for example' (from Latin exempli gratia).
I.e. means 'in other words' or "that is" (from Latin id est). 
 


The abbreviations e.g. (from Latin exempli gratia) and i.e. (from Latin id est) are often confused. This is because they are both usually used to clarify something preceding them.  ; whereas,

e.g.

The abbreviation e.g. is used to provide an example:

Examples:

The buffet provided excellent variety, e.g., vegetarian and non-vegetarian soups, Italian and French breads and numerous sweets.
(e.g. = for example)

He was the school champion of many activities (e.g., chess, badminton and 110m hurdles).  
(e.g. = for example)

i.e.

The abbreviation i.e. is used to restate an idea more clearly or offer more information.

Examples:

It happened in August; i.e. two months ago.
(i.e. = in other words)

It happened in August; e.g. two months ago.
(e.g. = for example)

Service charge is included in all prices, i.e., you don't have to leave a tip.
(i.e. = in other words)

Getting Them Wrong

Often mixing the abbreviations up does mean your sentence is grammatically incorrect. However, getting them wrong will change the meaning of your sentence.

Examples:

All amphibians are thriving in the new pond, e.g., the two bullfrogs were being very active yesterday.
(This sentence is fine grammatically. It infers that there are more than two bullfrogs in the pond.)

All amphibians are thriving in the new pond, i.e., the two bullfrogs were being very active yesterday.
(This sentence is fine grammatically. It infers that there are only two bullfrogs in the pond.)
 
 Select the correct answer:
 
     
 
     
 
     
 
REMEMBERING WHICH IS WHICH 

This may assist is remembering:

e.g. = "example given"
i.e. = "in effect"

THE FORMAT WITH E.G. OR I.E. 

Comma before is okay:
He directs a variety of genres, e.g., 
crime, disaster, drama, fantasy.
Semicolon before is okay:
He directs a variety of genres; e.g., 
crime, disaster, drama, fantasy.
Brackets are okay:
He directs a variety of genres (e.g., 
crime, disaster, drama, fantasy.)
Starting a sentence is okay:
He directs a variety of genres. E.g., he directs crime, disaster, drama and
fantasy.

COMMA AFTER E.G. OR I.E. 

In the US, it is usual to follow e.g. or i.e. with a comma. It is less common in the UK.  There is leniency in all conventions.  The golden rule is: be consistent.

FULL STOPS (PERIODS ) OR NOT

It is usual to see full stops (periods) with e.g. and i.e.  However, you can write them without.  The golden rule is simply: be consistent.
DON'T USE ETC. AFTER E.G. 

The examples you offer after using e.g. are usually samples from a more complete list. Therefore, it is often not appropriate to use etc. after e.g. since it is understood that you only offering a partial list by way of example. In the example below, the etc. is redundant:

Mark needs gloves to handle live fishing bait (e.g., rag worm, lug worm, crab, etc.)

In the example above:
the use of e.g. is correct
the use of etc. is wrong
Associated lessons:
 
Glossary of easily confused words
Glossary of common errors
Glossary of grammatical terms
Abbreviations
 
 

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