Please fill in the amount you wish to be insured in the column provided, mark "X" for item which you have no intention to insure.

请在欲投保项目中填写投保金额，在不想投保项目中打“X”号。

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An X mark is legal in most states as a valid signature.

FORBES: Taxes from A to Z: X Is For X-Mark (Signature)

Network Magic can detect a network outage and mark it with a big red "X" on the topology diagram showing you where the outage occurred, and gives you some indication of how to fix it.

ENGADGET: The Family is the Network: Pure Networks' Network Magic wants to make things simple

The "high-water mark" provision works this way: If the manager gets an incentive fee for taking the fund up X%, he doesn't get additional incentive fees until the fund tops a cumulative X% return.

FORBES: The $500 Billion Hedge Fund Fever