Definition of de-escalation in US English:

de-escalation

noun

  • See de-escalate

    • ‘Perhaps what comes out of there may start a cycle of de-escalation.’
    • ‘He said the move was in response to last year's generally peaceful marching season, and was part of an ongoing de-escalation over the past three years.’
    • ‘Not a day passes without one group and association or the other unfurling its own plans of conflict de-escalation, peace and harmony.’
    • ‘That is why the de-escalation of violence as quickly as possible is paramount.’
    • ‘None of these injustices can be rectified without a significant de-escalation of the conflict.’

Pronunciation

de-escalation

/ˌdēˌeskəˈlāSH(ə)n//ˌdiˌɛskəˈleɪʃ(ə)n/