The term 'BILL ATTACHMENT' can be broken down into three words: 'ABLE', 'RIDER', and 'ATE'. 'ABLE' is a 4-letter word meaning having the necessary power, skill, or resources to do something. 'RIDER' is a 5-letter word meaning a person who rides on or in a vehicle. Lastly, 'ATE' is a 3-letter word meaning to consume food. Together, these words form the phrase 'BILL ATTACHMENT', which is a document that is attached to a bill or invoice that provides additional information about the goods or services being billed.