投
throw, discard, abandon, launch into, join, invest in, hurl, give up, sell at a loss
Readings
On'yomi
- トウ
Kun'yomi
- な.げる
- -な.げ
Meaning
投 centers on sending something away from oneself with force or intention: throwing, hurling, discarding, or abandoning. Extended senses like launching into an activity, joining, or investing in something share the idea of directing oneself or resources outward, while selling at a loss is a financial abandonment.
Most common words using 投
24 of 385- 投稿とうこうN1
contribution (to a newspaper, magazine, etc.); submission; post (on a blog, social media, etc.)
- 投票とうひょうN3
voting; ballot; poll; vote
- 投資とうしN2
investment
- 投げなげ
throw; throwing
- 投入とうにゅうN1
throwing in; inserting; depositing (e.g. a ballot)
- 投手とうしゅ
pitcher
- 投下とうか
throwing down; dropping; airdrop
- 投げるなげるN4
to throw; to hurl; to fling; to toss; to cast
- 投与とうよ
administration (of medicine); giving medication
- 投影とうえいN1
projection (of a shadow); casting (a reflection); reflection; cast shadow
- 投球とうきゅう
pitching; throwing a ball; bowling (in cricket); pitched ball
- 投降とうこう
surrender
- 投棄とうき
abandonment; giving up; throwing away; disposal; dumping
- 連投れんとう
pitching in consecutive games
- 投薬とうやく
administration; medication; dosage
- 投機とうき
speculation; venture; stockjobbing; gambling (on stocks)
- 投じるとうじるN1
to throw; to cast (e.g. vote, light, shadow)
- 投函とうかん
mailing; posting
- 完投かんとう
going the whole distance; pitching a whole game
- 投信とうしん
investment trust
- 好投こうとう
good (nice) pitching
- 投石とうせき
stone throwing
- 投射とうしゃN1
projection (of an image)
- 投書とうしょN2
letter (e.g. of complaint); letter to the editor; letter from a reader
Study
Etymology
投 combines 扌 (hand) with 殳, a component associated with striking or action. The character likely expresses the idea of throwing or casting with the hand.
Meaning mnemonic
The left side is a hand 扌, and the right side 殳 suggests a striking tool. Picture a hand throwing a tool or weapon, sending it flying away.
Reading mnemonic
For トウ, imagine throwing a toe-shaped object: toe -> トウ, and your hand hurls it across the room.