Then (adv.)
- At that time; at the time in question.
Example: “I was living in Canada then.” - After that; next; afterward.
Example: “Finish your homework, and then you can go outside.” - In that case; therefore.
Example: “If you’re hungry, then we should eat now.”
Than (conj.)
- Used to introduce the second element in a comparison.
Example: “She is taller than I am.” - Used to introduce a rejected choice in expressions of preference.
Example: “I would rather walk than drive.” - Used to indicate difference in quantity, degree, or extent.
Example: “The task is easier than I thought.”