handshake
//ˈhænd.ʃeɪk//
Noun
handshakeSingular
handshakesPlural
1
An act of grasping and shaking another person's hand, typically as a greeting, farewell, or to seal an agreement.
They exchanged a firm handshake after signing the contract.
2
(computing) An automated process of negotiation between two devices or systems to establish communication parameters.
The two computers completed a handshake before transferring data.