They started as same word, but their meanings have drifted apart over time.
We'll tell you all the perpendiculars
'Mischievous,' 'nuclear,' and other words to pronounce with caution.
How the irregular 'snuck' sneaked into the dictionary
Good news for those who feel stuffy saying 'whom.'
Editor Emily Brewster clarifies the difference.
The most common vowel sound in English causes many spelling problems.