OPEN (4)

O″pen, v. i. 1. 1. To unclose; to form a hole, breach, or gap; to be unclosed; to be parted.
The earth opened and swallowed up Dathan, and covered the company of Abiram. Ps. cvi. 17. 2. 2. To expand; to spread out; to be disclosed; as, the harbor opened to our view.
3. 3. To begin; to commence; as, the stock opened at par; the battery opened upon the enemy.
4. 4. (Sporting) To bark on scent or view of the game.