1.   She developed a complete mental block against her pregnancy, and concealed it until four days before she went into labour.

2.   As with Priceline, the identity of the carrier, and the precise timing and routing, whether nonstop, or connecting, will be concealed until purchase.

3.   Scoreboard operators got into the cat-and-mouse spirit by keeping the digits concealed until a split-second before they were magnetically attached to the board.

4.   The amendment would also require presidents to disclose pardons as soon as they are granted, to ensure that pardons are not concealed until after the blackout period.

5.   The total was concealed until recently.