The cause of the problem was identified quickly.

An event or action that leads to a particular result or effect.
The cause of the accident is still unknown.
She is studying the cause of climate change.
Finding the cause of the illness took time.
root cause
main cause
cause and effect
reason
factor
source
She supports a charity that helps a good cause.

A group or organization working for a particular purpose or goal.
They formed a cause to protect the environment.
He joined a cause that fights for animal rights.
The community rallied around a cause to build a new playground.
support a cause
join a cause
promote a cause
organization
group
movement
The cause of the accident was a flat tire.

A reason or explanation for something happening.
The cause of the fire was a faulty wire.
The cause of her sadness was the news.
The cause of the delay was heavy traffic.
main cause
root cause
underlying cause
reason
motive
factor
The rain can cause flooding.

To make something happen or bring about an effect.
The loud noise can cause a headache.
His actions may cause trouble.
The sun can cause sunburn.
cause problems
cause damage
cause confusion
bring about
create
produce