Definitions!

Absolute measurements- measurements of fixed values
Relative measurements- measurements linked to type size
Points- unit of measurement used to measure the type size of a font
Picas- unit of measurement equal to 12 pts
x-height- the height of the lowercase 'x', relative to typface
The em- the relative unit of measurement in typesettin to define basic spacing functions
The en- the relative unit of measurement equal to half of one em
Dashes (hyphen, en, em)- specific pieces of punctuation, an en=1/2em, hyphen=1/3em
Alignments:
Justifcation- uses three values for type setting: minimum, maximum and optimum
Flush Left- text aligned to left margin
Flush Right-text alined to right margin
Letterspacing- adds space between letterforms to open up text
Kerning-removal of space between characters
Tracking- affects the amount of spacing between characters
Word Spacing- adjusts the amount of space between words
Widow- a lone word at the end of a paragraph
Orphan- the final one or two lines of a paragraph seperated from the main paragraph
Leading- space between lines of text in a text block
Indent-line/s of text shifted left or right
Fist Line Indent- text is indented from the left margin in the first line of paragraphs
Hanging Indent- indentation affecting several lines of text except the first line