13-letter words starting with OP

There are 20 13-letter words starting with OP. The most common are listed first, followed by the full list in alphabetical order.

Common 13-letter words starting with OP

• opportunities
• ophthalmology

All 13-letter words starting with OP

Common words are shown in bold. Linked words open their dictionary definition.

• openabilities
• openheartedly
• openmouthedly
• operabilities
• operationally
• operationisms
• operationists
• operativeness
• operosenesses
• ophthalmology
• opinionatedly
• opisthobranch
• opportuneness
• opportunistic
• opportunities
• oppositionist
• opprobriously
• optimisations
• optimizations
• optionalities

Other lengths

• 3 letters 3
• 4 letters 7
• 5 letters 10
• 6 letters 22
• 7 letters 38
• 8 letters 55
• 9 letters 57
• 10 letters 38
• 11 letters 26
• 12 letters 19
• 14 letters 14
• 15 letters 13