the.com/retaining
The art of keeping what wants to leave — be it water, walls, employees, or memory.
means Holding onto something so it stays in place, in use, or in your possession rather than slipping away.
from From Latin retinere, to hold back, fusing re- (back) with tenere (to hold) — the same grip behind tenacious and tenant.
EngineeringRetaining walls hold back earth that would rather collapse.
LawA retainer is fee paid to keep counsel's loyalty reserved.
MemoryRetention rates measure how much your brain refuses to leak.