i.e. (id est). Means that is or in other words.
Use to paraphrase the clause immediately preceding it.
You are a festering pustule on the hairy ass of the human race. i.e. A moron.
e.g. (exempli gratia). Means for example.
Use to give an example of the thing just mentioned
I realise it is superfluous to use the term example when providing an example for example, but what the fuck do you want for free.
Things not to do in the ladies room. e.g. Do not hover over the seat and use a hula hoop while voiding your bladder. e.g. Do not pee into a squirt gun and then shoot said gun straight up into the air.
viz. (videlicet). Means namely.
Use to introduce specifically the items that compose what has been previously expressed as a whole.
The Club 20 Patrons, viz Fiona, Jamie, Peter, Ian, Peter and Ian are the necrophiliac ghoul-for-hire bastard offspring of an unholy union of a crack-whore and Satan himself.
etc. (et cetera.) Means and so forth.
Use sparingly; it is imprecise and usually adds nothing to the sentence.
For Your Information:
et means and in Latin; writing and etc. makes you sound like an ignorant mindless puke-swilling shit-for-brains asswipe etc.
N.B. (nota bene) Means note well and does not in any way refer to the element Niobium.
Use to call attention to a point. Unlike most abbreviations from Latin, N.B. is always capitalized N.B.
He was stopped at a red light, behind a car with some pro-Christian bumper stickers. One of the stickers on the car said "Honk if you love Jesus!" So he did. The guy in the car in front of him, got out of the car, took a sawed-off baseball bat, and bashed a huge dent in the bonnet of the writer's car. N.B. Don't try this.
Q.E.D. (Quod Erat Demonstrandum) Means which was to be demonstrated.
Generally used to mean the 'end of the proof'. It does not mean, and you should never mean it to mean, and you should always be mean to the people who mean it to mean, 'no more discussion to be entered into' or 'fait accompli' or any other 'end of story, period, you are wrong and I am right'. It simply means that you have finished presenting your burden of proof. Whether the other side accepts it is irrelevant to Q.E.D.
He was stopped at a red light, behind a car with some pro-Christian bumper stickers. One of the stickers on the car said "Honk if you love Jesus!" So he did. The guy in the car in front of him, got out of the car, took a sawed-off baseball bat, and bashed a huge dent in the bonnet of the writer's car. Q.E.D.
Re: or RE: or re: From the Latin in re meaning 'in the matter'.
You thought it mean regarding. Ha!