Today, we’re going to list some words and phrases that are often used when another is meant. These are not words that have come to mean something else, the way “bemused” has morphed from meaning only “puzzled” to also meaning “wryly amused.” Instead, these are words that are mistakenly used for other words that sounds the same—a homophone or homonym, depending. We’ve already discussed a number of those separately, such as “soft-pedal,” “pour and pore,” “reign, rein, and rain,” and “hone in,” among others. These are more recent arrivals, or repeat offenders. Consider this to be the mother load of such words. Which, of course, should be mother lode.
In the spirit of Jonah Lehrer, full disclosure: This list was developed for student journalists and has been modified to fit this space.

Note how many of these explanations involve other words in this list. Sneaky, eh?
You might also make the point that while a lawyer is an attorney, an attorney need not be a lawyer. A lawyer has graduated from law school and passed the bar. An attorney is one who does something for another that he or she can't do themselves, i.e. represent them in court.
While Perry Mason's door read Attorney at Law, Dr. Marcus Welby's could read Attorney at Medicine.
#1 Posted by David Reno, CJR on Wed 12 Sep 2012 at 01:36 PM
I do not understand that one word can confused with another.
http://answers.yahoo.com/question/index?qid=20111014020803AAd1GAC
#2 Posted by Grennan james, CJR on Wed 12 Sep 2012 at 10:32 PM
I would add eminent v. imminent, and the wary/weary/leery continuum. Just because "weary" sounds like both "wary" and "leery" doesn't mean it means the same thing!
#3 Posted by Sarah S., CJR on Thu 13 Sep 2012 at 12:25 PM
While loath to be a pedant, I believe that both loath and reluctant are adjectives rather than adverbs.
#4 Posted by Steve Weber, CJR on Sat 15 Sep 2012 at 11:00 PM