The Swedish word for three is
tre

Translations for three and their definitions

tre	©
1. num. three

trea
1. n-c. three; the digit "3".
2. n-c. third-grader; pupil in the third year of school
3. n-c. a class of third-graders
4. n-c. (mainly used in the definite) the third year in school, or the third year in gymnasiet
De barnen går i trean. - Those children are in third grade.
5. n-c. (mainly used in the definite) third gear
6. n-c. a person who finishes a competition as number three
7. n-c. an apartment with one kitchen and three rooms