IPA: /ˌpriːˈplænɪŋ/
KK: /priˈplænɪŋ/
The act of making plans ahead of time to prepare for future events or activities.
Effective preplanning can help ensure that the project runs smoothly.
Preplanning → It is formed from "pre-" (meaning before) and "planning" (from the verb "plan", which comes from Old French *planer*, meaning to make a scheme or design). The word "preplanning" means the act of planning something in advance or before the actual planning takes place.
Think of 'before' ('pre-') making a 'scheme' or 'design' ('planning') — that's why preplanning means to plan ahead.