To no avail; without success: Our labor was in vain.

What does in vain stand for?

phrase. If you say that something such as someone's death, suffering, or effort was in vain, you mean that it was useless because it did not achieve anything. He wants the world to know his son did not die in vain.

Is it vein or vain?

Vain is an adjective that means egocentric or full of oneself. Vein is a noun that refers to a blood vessel, a mineral deposit, or a common theme.