handshake

Meanings

1. 1
   noun

   The act of two people holding and shaking each other's hand as a greeting or to agree on something.

   They sealed the deal with a firm handshake.

2. 2
   noun

   In computing, the exchange of signals between two devices to start communication.

   The two computers complete a handshake before transferring data.

3. 3
   verb

   To greet someone by shaking hands.

   The two leaders handshook before the meeting began.

From hand + shake. See the appendix for the history of the gesture itself.

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