En Dash

A dash that is of the width of one 'n'.

HTML Code – &ndash, &#8213
Chicago 6.83
Wikipedia - http://en.wikipedia.org/wiki/En_dash#En_dash

Signifies:

• Relationship → proposition―hypothesis relationship; Hindu―Muslim unity.
• Range → 10―15 years; pp. 125―58.

Synonyms for Above and Below

Above: before, foregoing, aforementioned, aforesaid, aforestated, antecedent, preceding, prior, previously.

Below: next, afterwards, subsequent, succeeding, following, ensuing, later.

What is a good line-end word break?

On dividing a word at the end of a line:

Break the word at a syllable. For instance, if the sentence ends with 'organization', you may break it at any of the following:
Or-
Organ-
Organiz-
Organizat-

Also see this excellent guide from Dictionary.com - http://dictionary1.classic.reference.com/writing/styleguide/division.html

Its vs It's

Its = The dog's tail (possessive pronoun).

It's = It is (contraction).

See more:

http://www.stormloader.com/garyes/its.html

http://www.wisegeek.com/what-is-the-difference-between-its-and-its.htm