御前[omai] you (formerly honorific, now sometimes derog. term referring to an equal or inferior)
御前さん[omaesan] you
已前[izen] ago
以前に[izenni] ago
一人前[ichininmae] becoming adult

一人前になる[ichininmaeninaru] to come of age
一昔前[hitomukashimae] long ago
一歩前進[ippozenshin] (a) step forward
駅前[ekimae] in front of station
駅前通り[ekimaedoori] street in front of station

外壕[sotobori] outer moat (castle)
塹壕[zangou] trench
内壕[uchibori] inner moat
防空壕[boukuugou] air-raid shelter

掩壕[engou] cover trench
待避壕[taihigou] bomb shelter
塹壕熱[zangounetsu] trench fever