What is the meaning of sidetrack?

1. To cause (someone or something) to move away from or not continue along their intended path.

2. To divert (someone's attention or interest) from a particular subject or course of action.

Examples:

1. He was _sidetracked_ by a conversation with a stranger and missed his train.

2. She was _sidetracked_ from her work by the sound of her husband coming home.