Meaning of “handshake” in the English Dictionary

"handshake" in British English

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handshakenoun [ C ]

uk /ˈhænd.ʃeɪk/ us /ˈhænd.ʃeɪk/

a greeting, or an act showing that you have made an agreement, in which two people who are facing each other take hold of and shake each other's right hand:

He welcomed me with a wide smile and a warm handshake.

(Definition of “handshake” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"handshake" in American English

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handshake[ C ]

us /ˈhændˌʃeɪk/

a greeting or expression of agreement in which two people who are facing each other take hold of each other’s right hands and move them up and down

(Definition of “handshake” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"handshake" in Business English

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handshakenoun [ C ]

uk /ˈhændʃeɪk/ us

a greeting in which two people who are facing each other take hold of each other's right hand and move it up and down:

His charm begins with a warm smile, his arm on your shoulder and a firm handshake.

a business agreement made informally without signing an agreement:

a handshake agreement/deal
On a handshake, I've promised the first car to one of our established customers.

IT a signal sent from one computer to another to show that they are ready to send and receive information:

Hackers false requests for an electronic handshake with our machines are so numerous that the legitimate requests can't get through.

(Definition of “handshake” from the Cambridge Business English Dictionary © Cambridge University Press)