|Origin:||'cross-shaped', from Latin crux; CROSS2|
cru‧cial S3 W2
This aid money is crucial to the government's economic policies.
crucial in/to doing something
The work of monks was crucial in spreading Christianity.
play a crucial role/part in something
The city of Mycenae played a crucial role in the history of Greece.
The conservation of tropical forests is of crucial importance.
—crucially adverbWORD FOCUS: important
similar words: main, key, chief, principal, leading, vital, crucial, essential, significant
not important: unimportant, trivial, minor, irrelevant, insignificant
➔ See also important