保 - protect, guarantee, keep

bail; releasing on bail

deposit (esp. on renting a house); security money; bond payment; guarantee

guardian; protector; patron; parent

retaining warmth; keeping heat in; heat insulation

nursery school; day nursery; day care center

maintenance

peace preservation; security

Conservative Party

preservation of health; hygiene; sanitation

insurance payout; insurance money

(female) public health nurse

possession; retention; maintenance