What is the meaning of purchase?

noun

• The acquisition of something for payment.
  • usage: "they closed the purchase with a handshake"
• Something acquired by purchase.
• A means of exerting influence or gaining advantage.
  • usage: "he could get no purchase on the situation"
• The mechanical advantage gained by being in a position to use a lever.
  • synonyms: leverage

verb

• Obtain by purchase; acquire by means of a financial transaction.
  • usage: "The family purchased a new car"; "The conglomerate acquired a new company"; "She buys for the big department store"
  • synonyms: buy