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)