suicide pact
Longman Dictionary of Contemporary English 5++LDOCE 5++ˈsuicide ˌpact noun [countable] KILLan arrangement between two or more people to kill themselves at the same time （集体）自杀协议〔指两人或两人以上约定一起自杀〕
Examples from the Corpus
suicide pact• Lowestoft is a town twinned with nowhere, although it is considering a suicide pact with Basildon.• Desperate and afraid, they formed a suicide pact.• So they joined in a suicide pact which would rid them for ever of parental domination.• Detectives are investigating whether it was an accident, a murder or a suicide pact.• At the moment they don't know whether this was an accident, a murder or a suicide pact.ˈsuicide ˌpact nounChineseSyllable
people arrangement Corpus an more two or between
suicide pact
ˈsuicide ˌpact
noun [countable]
an arrangement between two or more people to kill themselves at the same time
ˈsuicide ˌpact
noun [countable]an arrangement between two or more people to kill themselves at the same time