What is the meaning of Offside?

In an illegal position ahead of the ball, puck, etc.

out of bounds.

To the side of the road, past the curb and sidewalk.

Unfavourably located, from the point of view of the player taking a finesse.

To the side of a boat, opposite the primary side on which one paddles.

An offside play.

The side of a road vehicle furthest from the kerb: the right side if one drives on the left of the road.

The right-hand side of a working animal such as a horse or bullock, especially when in harness.

The side of a canal opposite the towpath.

an offside position

offside

offside

Source: wiktionary.org