

b. The quantity or number needed to make up a whole: shelves with a full complement of books.
c. Either of two parts that complete the whole or mutually complete each other.
For those who may not have heard of Steven Pinker, a cognitive scientist and linguist who currently teaches at Harvard, and for those who may not have seen this lecture based on his outstanding book The Stuff of Thought, here is the video from YouTube.
.
It is well worth the watch.
According to an e-mail that has been around for several years (and is supposedly based on Cambridge University research), as long as the first and last letters of a word are positioned accurately, the order of the internal letters should not interfere with a reader's ability to interpret the word.
This past December, a new video debunking this claim made the rounds.
In case you missed it on The Spelling Blog, Language Hat, Mighty Red Pen or anywhere else it may have appeared, here it is:
Excellent analysis from What You Ought to Know.