Words Their Way

3. athletic contest consisting of three different events, typically swimming, cycling, and long-distance running.
4. group of three related novels, plays, films, operas, or albums.
5. to, composed of, or involving two things.
10. -any of several muscles having two points of attachment at one end.
11. a long speech by one actor in a play or movie, or as part of a theatrical or broadcast program.
12. continuing sound, especially of a person's voice, that is unchanging in pitch and without intonation.
15. of three children or animals born at the same birth.
16. produced, or occurring every two weeks or twice a week.
18. a three-legged stand for supporting a camera or other apparatus.
20. recurring every three years.

1. lack of variety and interest; tedious repetition and routine.
2. done, produced, or occurring twice a month or every two months.
6. branch of mathematics dealing with the relations of the sides and angles of triangles and with the relevant functions of any angles.
7. a legislative body) having two branches or chambers.
8. taking place every other year.
9. the exclusive possession or control of the supply of or trade in a commodity or service.
13. the three-hundredth anniversary of a significant event.
14. into two parts.
17. flag with three bands or blocks of different colors, especially the French national flag with equal upright bands of blue, white, and red.
19. a railroad in which the track consists of a single rail, typically elevated, with the trains suspended from it or balancing on it.