1. One who is rigorous; sometimes applied to an extreme Jansenist

Derived forms: rigorists

• third-rater
• third-year
• thirdhand
• thirdly
• thirst
• thirst for knowledge
• thirster
• thirstily
• thirstiness
• thirsty
• thirteen
• thirteenth
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• thirtieth
• thirty
• Thirty Years' War
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• thirty-eighth
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• thirty-ninth