What's the difference between stound and while?

Stound

Definition:

• (v. i.) To be in pain or sorrow.
• (v. i.) Stunned.
• (n.) A sudden, severe pain or grief; peril; alarm.
• (n.) Astonishment; amazement.
• (n.) Hour; time; season.
• (n.) A brief space of time; a moment.
• (n.) A vessel for holding small beer.

Example Sentences:

While

Definition:

• (n.) Space of time, or continued duration, esp. when short; a time; as, one while we thought him innocent.
• (n.) That which requires time; labor; pains.
• (v. t.) To cause to pass away pleasantly or without irksomeness or disgust; to spend or pass; -- usually followed by away.
• (v. i.) To loiter.
• (conj.) During the time that; as long as; whilst; at the same time that; as, while I write, you sleep.
• (conj.) Hence, under which circumstances; in which case; though; whereas.
• (prep.) Until; till.

Example Sentences: