投

トウ

な.げる、-な.げ

投, 扌, 殳, 几, 丿, 又

手

throw, discard, abandon, launch into, join, invest in, hurl, give up, sell at a loss

投資(とうし): investment
投票(とうひょう): voting; poll
投書(とうしょ): letter to the editor; letter from a reader; contribution
投入(とうにゅう): (1) throwing into; inserting; depositing (2) investment; putting in (personnel, etc.) (3) release of a product (4) making (an electrical circuit)
投げ出す(なげだす): (1) to throw down; to throw out; to stretch out (one's legs) (2) to abandon; to resign (3) to give freely; to give generously; to sacrifice (e.g. one's life) (4) to start to throw
投げる(なげる): (1) to throw; to cast away (2) to face defeat; to give up