They started as same word, but their meanings have drifted apart over time.
Some practical guidance, and interesting history, about a common mistake.
A simple trick to keep them separate
The awkward case of 'his or her'
Comedian ISMO tries to figure out 'one' and 'two'
What our editors are looking for when they enter words in Merriam-Webster.
How an ancient philosophical movement devoted to the pursuit of virtue came to describe eye-rolling criticism.
