English Language & Usage Stack Exchange is a question and answer site for linguists, etymologists, and serious English language enthusiasts. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicates:
“Backward” versus “backwards” — is there any difference?
Afterward versus afterwards — which, and/or when?

I have seen both used interchangeably in equivalent contexts.

Market is moving upward of 1600...

OR should have I used upwards?

share|improve this question

marked as duplicate by Robusto, Alenanno, Kit Z. Fox, kiamlaluno, snumpy Jun 13 '11 at 13:34

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

It's related, although information in the mentioned link, only deals with general pool of word. The explanation thre is poor and obscure at best. – Anderson Silva Jun 12 '11 at 21:01
I think this has been covered before. @RegDwight's last link should make the distinction you need here. – Robusto Jun 12 '11 at 21:02

They seem to mean the exact same thing. Taken from the same dictionary:

Upward –adverb Also, upwards
1.toward a higher place or position: The birds flew upward.
2.toward a higher or more distinguished condition, rank, level, etc.: His employer wishes to move him upward in the company.
3.to a greater degree;

The difference, is the usage of the words themselves in the different countries of GB and USA:

From the Chicago Manual of Style :

The preferred form is without the s in American English, with it in British English. The same is true for other directional words, such as upward, downward, forward, and backward, as well as afterward. The use of afterwards and backwards as adverbs is neither rare nor incorrect. But for consistency it is better to stay with the shorter forms.

So, it seems Americans prefer to use 'upward', while GB prefers using 'upwards'. This doesn't however, mean that everyone in USA uses 'upward', or everyone in Great Britain uses 'upwards'. It's a general reference.

share|improve this answer

Not the answer you're looking for? Browse other questions tagged or ask your own question.