To lay down a challenge; to provide a test of commitment (often one which carries a high risk) to a cause.
To create a real or artificial boundary or distinction between (two places, people or things).
To indicate the threshold or level above which something will become unacceptable or will provoke a response; to create a boundary and imply or declare that its crossing will provoke a (negative) response.
To take a risk, with the potential of a positive outcome.
To risk (something) for potential gain.
To interact with equipment at a casino
To play risky games, especially casino games, for monetary gain.
A risky venture.
A bet or wager.
A significant risk, undertaken with a potential gain.