What’s a word that starts with O and ends with O?

The most common word that starts with O and ends with O is “onto.” Other examples include:

  • Oleo: An old-fashioned word for “margarine”
  • Oregano: Cooking spice common in Italian dishes
  • Orzo: Type of pasta
  • Otto: Small fish common in freshwater aquariums
  • Outdo: Do better than someone or something else
  • Overdo: Do excessively

When you’re curious about other words that start with O, QuillBot’s AI Chat can show you lists and definitions.

Improve tone, readability and flow to sound more 'you'