Bonus – 1. a slot feature that is activated when certain symbols or a combination of symbols appear on the screen. Some bonuses may be free rounds of the game, others may be an extra win which multiplies the wins on the lines by a specific number in the paytable and the rest may be wild symbols that stand for any other on the reel.
2. a free money promotion for first-time or regular players which is paid to attract players to join an online casino.