一本槍[ipponyari] guiding principle
槍玉[yaridama] victim
竹槍[takeyari] bamboo spear
横槍[yokoyari] interruption

投げ槍[nageyari] javelin
槍先[yarisaki] spearhead
槍投げ[yarinage] javelin (throw)
槍持ち[yarimochi] spear carrier (for the master of a samurai family)

鎌止め[kamadome] cutting grass and trees is prohibited
鎌首[kamakubi] sickle-shaped neck (e.g. snake, praying mantis)
鎌倉時代[kamakurajidai] Kamakura period (1185-1333 CE)
鎌足[kamaashi] legs bowed in
鎌鼬[kamaitachi] type Japanese folkloric monster (yokai), thought to be a trio of weasels who appear in a whirlwind to cut their victim

鎌切[imojiri] praying mantis (esp. the narrow-winged mantis, Tenodera angustipennis)
鎌形[kamagata] sickle-shaped
鎖鎌[kusarigama] sickle and chain (weapon)
鎌をかける[kamawokakeru] to trick someone (into confirming or revealing the truth)