鉄兜[tetsukabuto] steel helmet
兜虫[kabutomushi] rhinoceros beetle (esp. the Japanese rhinoceros beetle, Trypoxylus dichotomus)
内兜[uchikabuto] inside of a helmet
兜蟹[kabutogani] horseshoe crab
鳥兜[torikabuto] aconite (esp. species Aconitum japonicum)

兜頭巾[kabutozukin] helmet-shaped hood
兜率天[tosotsuten] Tusita heaven
勝って兜の緒を締めよ[kattekabutonoowoshimeyo] don't let your guard down even after a victory
角兜[tsunokabuto] spiked helmet

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