Slipped

The pencil slipped from the desk onto the floor.

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

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

He slipped the ring from his finger and into the box.

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

He slipped on the soap in the shower and grabbed onto the curtain to prevent falling.

The building's safety standards have slipped over the years due to lack of maintenance.

He slipped on the wet tiles and almost crashed into the wall.

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