Detach/dɪˈtætʃ/ Definition 1 of 4Pro Tip 1/2Physical Separation Refers to taking apart objects that are joined; it's a tangible action you can see. Please detach the power cord from the laptop. Pro Tip 2/2Email Attachments Commonly used when dealing with email; to disconnect a file from an email before sending. Detach the images from the email to reduce its size.