onside

1. (sports) Not in an offside position; In the part of the playing area where one can legally play the ball, puck, etc.Examples: "The goal was allowed because the attacker was onside."; "After passing the puck, the center immediately breaks to the front of the net, making certain to stay onside."; "Rafael van der Vaart then stayed onside to slot past Paddy Kenny when he collected Ledley King's mis-hit shot."not-comparable

2. (by extension, slang) Within bounds.Examples: "[Verse 2:Kano]:On-sight, thought he was onside, innit. Saw them guys, no shots fired innit. If you ain't real then don't ride, innit. That postcode, that's offside, innit."broadlynot-comparableslang

3. (bridge) Favourably located, from the point of view of the player taking a finesse.Examples: "With A-Q-10 opposite x-x-x, you have a 24% chance of three tricks, both missing honors being onside. You have a 52% chance of two tricks, with one honor onside and the other offside. FInally, you have a 24% chance of making only one trick, when both the king and the jack are offside."not-comparable