composiˈtion noun

1. The act or art of composing
2. The nature or proportion of the ingredients (of anything)
3. A thing composed
4. A work of art, esp in music
5. An exercise in writing prose or verse
6. Arrangement of parts
7. Combination
8. An artificial mixture, esp one used as a substitute
9. Mental or moral make-up
10. A compromise
11. A percentage accepted by a bankrupt's creditors in lieu of full payment
12. The compounding of vector quantities, such as velocities forces, into a single resultant
13. A picture or photograph formed from several images
14. The transition from a concept or assertion about individuals to one about the class to which they belong (philosophy)

composiˈtional adjective

composure /kəm-pōzhˈ(y)ər/ noun

1. Calmness
2. Self-possession
3. Tranquillity
4. Composition
5. Temperament, character (archaic)

composing room noun

A room in a printing works in which type is set

composing stick noun (printing)

A box-like holder in which type is fitted before it is placed on the galley