シュ  
まも.る まも.り もり -もり かみ 
() guard () protect () defend () obey
                
まもり (n) (1) protection, defense, defence, (2) providence, (3) (abbr) amulet, charm, talisman
もり (n) (1) babysitting, babysitter, (2) protecting, keeping, keeper
まもる (v5r,vt) (1) to protect, to guard, to defend, (2) to keep (i.e. a promise), to abide (by the rules), to observe, to obey, to follow
しゅえい (n) security guard, doorkeeper
しゅせい (n,adj-no) (being on the) defensive
しゅび (n,vs,adj-no) defense, defence

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Etymologies: 中文字譜 : 説文解字