1152. This week, we look at what a baker's dozen is and why it's actually 13. We also look at other "dozen" phrases, like "devil's dozen" and "banker's dozen." Finally, we tackle the inconsistency of making words that end in O plural, from "tomatoes" to "rodeos."

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What is a baker’s dozen? Making O-words plural. Wrong pew.

Grammar Girl: For Writers and Language Lovers.

What is a baker’s dozen? Making O-words plural. Wrong pew.