noun
premeditation
pree-med-ih-TAY-shun/ˌpriːˌmedɪˈteɪʃn/
Planning or consideration before an action, especially a crime.
The untouched gloves and prepared plan suggest premeditation before the fictional burglary.

Etymology
Considering beforehand is the central idea: thought precedes the action. In the selected sense, especially concerning a crime, the word names that advance deliberation or planning.
In context
It was about premeditation. >> It was like the killer didn't just want to harm them. They wanted control. They wanted isolation. They wanted to be sure they got the job done.
More examples
- The written plan suggested premeditation rather than a sudden impulse.
- The essay examined the difference between anger and premeditation.
- Careful premeditation shaped every step of the scheme.
Forms
premeditation
premeditated adjective — planned beforehand
Similar words
- planning
- Planning is any advance arrangement; premeditation especially stresses prior consideration before wrongdoing.
- deliberation
- Deliberation carefully considers a choice; premeditation locates that thought before the act.