Compounds of 投

• 正投手
  (n) regular pitcher
• 雪投げ
  (n) snowball fight
• 槍投げ
  (n) javelin (throw)
• 投げる
  (v1,vt) (1) to throw
  to cast away
  (2) to face defeat
  to give up
  (P)
• 投げ荷
  (n) jetsam
  jettisoned cargo
• 投げ技
  (n) throw or throwing technique (sumo, judo)
• 投げ業
  (n) throw or throwing technique (sumo, judo)
• 投げ首
  (n) being at a loss
• 投げ槍
  (n) javelin
  lance
• 投げ縄
  (n) a lasso
• 投げ物
  (n) sacrifice goods
  liquidation (shares)
  things thrown (out)
• 投げ文
  (n) (love) letter tossed into a home
• 投じる
  (v1,vi) to throw
  to cast
  to invest
  (P)
• 投影機
  (n) a projector
• 投影図
  (n) a projection drawing
• 投影線
  (n) (comp) projector
• 投影法
  (n) projective technique
• 投開票
  (n) general election
  public ballot
• 投機筋
  (n) speculator
• 投機師
  (n) adventurer
  speculator
• 投機心
  (n) a speculative spirit
• 投機的
  (adj-na) speculative
• 投機熱
  (n) speculation fever
• 投光器
  (n) floodlight
  floodlight projector
• 投稿者
  (n) contributor (of written material)
• 投稿文
  (n) written contribution
  submission (to a newspaper, online forum, etc.)
• 投稿欄
  (n) reader's column
  letters-to-the-editor column
• 投降者
  (n) surrenderer
  person who surrenders
• 投資家
  (n) investor
• 投射角
  (n) angle of projection or incidence