Noun
shielder -
a person who cares for persons or property
defender ,
guardian ,
protector
preserver someone who keeps safe from harm or danger
admonisher ,
reminder ,
monitor someone who gives a warning so that a mistake can be avoided
bodyguard ,
escort a group of men who escort and protect some important person
paladin ,
fighter ,
champion ,
hero a high-speed military or naval airplane designed to destroy enemy aircraft in the air
chaperon ,
chaperone one who accompanies and supervises a young woman or gatherings of young people
custodian ,
keeper ,
steward one having charge of buildings or grounds or animals
fire fighter ,
firefighter ,
fire-eater ,
fireman a performer who pretends to swallow fire
foster-parent ,
foster parent a person who acts as parent and guardian for a child in place of the child's natural parents but without legally adopting the child
guard a position on a basketball team
keeper someone in charge of other people; "am I my brother's keeper?"
law officer ,
lawman ,
peace officer an officer of the law
patron saint a saint who is considered to be a defender of some group or nation
peacekeeper the pistol of a law officer in the old West
tribune the apse of a Christian church that contains the bishop's throne
