。
She died of shock.
Literal
She [topic-は] shock-died.
A compact compound: ショック ('shock,' an English loanword) + 死 ('death') yielding ショック死, usable directly as a する-verb. Japanese is freely productive with this kind of compounding — pairing a foreign noun with the kanji 死 produces a quick way to specify a manner of death. The same morpheme appears in 自殺 (suicide), 病死 (death by illness), 過労死 (death from overwork), 即死 (instant death). Common in news writing for cardiac shock, traumatic shock, or sudden emotional shock leading to death.