ADJ

real, root, true, underlying
the root cause of the problem
deeper, greater
A greater cause for resentment is the discrepancy in pay
biggest, chief, clear, fundamental, important, main, major, primary, prime, principal, significant
common
Smoking is a common cause of premature death
likely, possible
known, unknown
direct, indirect
immediate, initial
long-term, short-term
reasonable
There is no reasonable cause to suspect an unnatural death
contributory
hidden
social
the social causes of ill health

VERB + CAUSE

discover, find, identify
attempts to identify the immediate cause of the breakdown

CAUSE + VERB

be, lie in sth
The real cause of the problem lies in the poor construction of the bridge

PHRASES

cause and effect, the cause of death, due to/from/of natural causes
He died of natural causes

ADJ

good, great, real, reasonable

VERB + CAUSE

have
We have good cause to believe that he was involved in the crime
find
The experts may find cause to disagree with the school's decision
give (sb)
Her health is giving us great cause for concern
show
The onus is on government departments to show cause why information cannot be disclosed

PREP

~ for
There is no cause for alarm

PHRASES

cause for concern, with/without good cause, without just cause

ADJ

deserving, good, just, noble, worthwhile, worthy
The money she left went to various worthy causes
bad, unjust
common
The different groups support a common cause
hopeless, lost (= one that has failed or that cannot succeed)
humanitarian, social
communist, socialist, etc.

VERB + CAUSE

be committed/sympathetic to, champion, fight for, further, help, promote, serve, support
young men willing to fight for the cause She was keen to do anything that would further the cause
take up
She has taken up the cause of animal rights
plead
He pleaded the cause of the local fishermen

PREP

in a/the ~
prominent figures in the socialist cause
in the ~ of
to disregard the strict letter of the law in the cause of true justice

PHRASES

a cause celebre (= a controversial issue that attracts a great deal of public attention), (all) for/in a good cause
The function took a lot of organizing, but was all in a good cause