support - strengthen - reinforce - boost - fortify - sustain - uphold - buttress - prop up - shore up - back - aid - assist - enhance - improve - augment - amplify - invigorate - energize - buoy - brace - underpin - nurture - encourage - foster - promote - stimulate - embolden - hearten - rally - secure - solidify - stabilize - toughen - harden - intensify - consolidate - empower - validate - confirm - corroborate - substantiate - affirm - endorse - ratify - approve - certify - authenticate - legitimize - authorize
The term 'bolster' refers to supporting or strengthening something. It can be used in various contexts, such as providing physical support, emotional encouragement, or reinforcing an argument or position.