投げる【なげる】
to throw, to hurl, to fling, to toss, to cast, to give up, to abandon, to throw away, to cast (a glance, shadow, doubt, etc.)
投票【とうひょう】
voting, ballot, poll, vote
投資【とうし】
investment
投稿【とうこう】
contribution (to a newspaper, magazine, etc.), submission, post (on a blog, social media, etc.)
投与【とうよ】
administration (of medicine), giving medication
投入【とうにゅう】
throwing in, inserting, depositing (e.g. a ballot), investment, commitment (of funds, personnel, etc.), injection, infusion, launching (a product into the market), introduction, submitting (a job to a computer), issuing (a command)
投資家【とうしか】
investor
投書【とうしょ】
letter (e.g. of complaint), letter to the editor, letter from a reader, contribution (to a newspaper, magazine, etc.)
投じる【とうじる】
to throw, to cast (e.g. vote, light, shadow), to devote oneself (e.g. to a cause), to invest, to put in, to administer (medicine), to give, to surrender, to take advantage of, to make full use of, to fit well with, to match with, to be in tune with, to stay (at a lodging)
投獄【とうごく】
imprisonment, incarceration
投射【とうしゃ】
projection (of an image)
投影【とうえい】
projection
投降【とうこう】
surrender
投手【とうしゅ】
pitcher
国民投票【こくみんとうひょう】
national referendum
投球【とうきゅう】
pitching, throwing a ball, bowling (in cricket), pitched ball
完投【かんとう】
going the whole distance, pitching a whole game
投げ出す【なげだす】
to throw down, to throw out, to stretch out (one's legs), to abandon, to resign, to give freely, to give generously, to sacrifice (e.g. one's life), to start to throw
投棄【とうき】
abandonment, giving up, throwing away, disposal, dumping
投機【とうき】
speculation, venture, stockjobbing, gambling (on stocks)