Placement
Part of speech: noun
Definition: The act of placing or putting in place; the act of locating or positioning; the state of being placed. A location or position. The act of matching a person with a job
Example sentence: If you really think about it, when watching television, you have product placement all the time.
Arrangement
Part of speech: noun
Definition: The act of arranging.The manner of being arranged.A collection of things that have been arranged.(plural) Preparations for some undertaking.An agreement.An adaptation of a piece of music for other instruments, or in another style.
Example sentence: The test for whether or not you can hold a job should not be the arrangement of your chromosomes.