This is the 1173rd most frequent Japanese word.
投入
"投入" means "投入" means "investment," "input," or "commitment," depending on context.
In this sentence, "投入" is used figuratively to mean dedicating or committing one's resources (such as effort or energy) fully into an objective or activity.
彼は新製品の開発に全力を投入した。
He dedicated all his efforts to the development of the new product.
Here, "投入" is used in its literal sense, representing the action of inserting or putting an object (coin) into something.
彼は自動販売機に硬貨を投入した。
He inserted a coin into the vending machine.
In this example, "投入" describes the allocation or investment of resources (money) into a specific initiative or purpose.