invoice vs statement

invoice

noun
  • A bill; a commercial document issued by a seller to a buyer indicating the products, quantities and agreed prices for products or services that the seller has already provided the buyer with. An invoice indicates that, unless paid in advance, payment is due by the buyer to the seller, according to the agreed terms. 

  • The lot or set of goods as shipped or received. 

  • The price which a seller or dealer pays the manufacturer for goods to be sold. 

verb
  • To bill; to issue an invoice to. 

  • To make an invoice for (goods or services). 

statement

noun
  • A declaration or remark. 

  • A presentation of opinion or position. 

  • An instruction in a computer program, especially one that returns no value, as opposed to a function call. 

  • A document that summarizes financial activity. 

verb
  • To provide an official document of a proposition, especially in the UK a Statement of Special Educational Needs. 

How often have the words invoice and statement occurred in a corpus of books? (source: Google Ngram Viewer )