What context can I use each word in?
Learn when and how to use these words with these examples!
tertiary
Example
The tertiary sector of the economy includes healthcare, education, and finance. [tertiary: adjective]
Example
She decided to pursue tertiary education to become a doctor. [tertiary: noun]
third
Example
He came in third place in the race. [third: adjective]
Example
Please read the third chapter of the book for homework. [third: noun]
Good things to know
Which word is more common?
Third is more commonly used than tertiary in everyday language, as it has a wider range of applications. Tertiary is more specialized and is typically used in academic or professional settings.
What’s the difference in the tone of formality between tertiary and third?
Tertiary is more formal than third, which is more casual and commonly used in everyday language.
