Sometimes, they slip one another notes across a table, or use sign language.

It is difficult, he said, to prevent anyone from slipping across the line.

Tom was already back through - I saw him slipping across the dark stage.

Something, someone, had slipped across the corner of his vision.

I rose and slipped across the dark space to the wall mirror.

The other half would slip across country and take position in the Forest behind the first village.

They slip across the border by the thousands every day.

The chill left and the heat of the summer night slipped back across her.

In an instant I slipped across the street again and back into the station.

Without saying a word, we dropped low and slipped across the parking lot.