ドウ 
みちび.く 
() guide () lead
         
みちびく (v5k,vt) (1) to guide, to lead, to show the way, to conduct, (2) to derive, to deduce
どうかせん (n) fuse
どうにゅう (n,vs) introduction, bringing in, leading in, installation

Links: KanjiDic: EDict : Wikimedia
Etymologies: 中文字譜 : 説文解字