General English

  • noun an occasion when someone or something hits against something accidentally
  • noun a disagreement or difference

General Science

  • noun a crash between two objects such as vehicles or molecules


  • noun a crash between two objects, two vehicles, etc.


  • noun an event that occurs when two electrical signals meet and interfere with each other over a network, normally causing an error


  • A powerful and immediate contact between two or more things.
  • Any contact between two or more things. This includes virtual contact, such as that of images on a computer screen.
  • In a communications network, an event where two or more stations transmit simultaneously over the same channel. This may result in data being garbled or lost.


  • noun an act of colliding