To help, assist.
To profit; benefit; serve; avail.
To take the place of; replace.
To give aid, assistance, or help.
To provide aid or assistance in the form of military equipment and soldiers; in particular, for helping a place under siege.
To protect, to shelter; to provide a refuge.
Aid or assistance in the form of military equipment and soldiers, especially reinforcements sent to support military action.
Protection, refuge, shelter; (countable) a place providing such protection, refuge or shelter.
Aid, assistance, or relief given to one in distress; ministration.