Slipped

He slipped the pen off the desk and into his pocket.

The book slipped from his lap and onto the floor.

He slipped on the wet steps and tumbled down the stairs.

The spy slipped the secret code into the message, without anyone realizing it.

She slipped on the rug and nearly fell down the stairs.

The secret plan was slipped into a confidential memo, without anyone noticing.

The artist slipped the brush from her hand and it landed on the canvas.

She slipped on the wet spot in the kitchen and dropped the dishes she was carrying.

The quality of the hotel has slipped since the new management took over.

The airline's punctuality slipped due to bad weather.

The spy slipped past the guard and entered the building undetected.