Saint Andrew's cross

名词noun

1. 1A diagonal cross, the figure of a cross that has a form of two intersecting oblique bars.
2. 2The national flag of Scotland.
3. 3The sign or signal used at gateless level crossings, consisting of one or more red and white painted crosses sometimes with flashing lights.
4. 4The plant Hypericum hypericoides.
5. 5(BDSM) An upright X-shaped frame to which a participant can be tied.