Do you use i.e. , and e.g. , what do they mean ???

The Latin abbreviations "i.e." and "e.g." come up very frequently in writing. when it is right to use "i.e." and when "e.g." is required.

I.E. - What Does i.e. Mean?

"i.e." stands simply for "that is," which written out fully in Latin is 'id est'.  "i.e." is used in place of "in other words,"   or  "it/that is."  It specifies or makes more  clear.

Example:

The most beautiful human in Greek mythology, i.e., Leda's daughter Helen, may have had a unibrow, according to a 2009 book on Helen I'm reading.

E.G. - What Does e.g. Mean?

"e.g." means "for example" and comes from the Latin expression “exempli gratia”,  "for the sake of an example" . "e.g." is used in expressions similar to "including," when you are not intending to list everything that is being discussed.

Example:

The children of Leda, e.g., Castor and Pollux, were born in pairs.