Meaning : Fail to do something. Leave something undone.
She failed to notice that her child was no longer in his crib.
The secretary failed to call the customer and the company lost the account.
Synonyms : neglect
Meaning : Disappoint, prove undependable to. Abandon, forsake.
His sense of smell failed him this time.
His strength finally failed him.
His children failed him in the crisis.
Synonyms : betray
Meaning : Stop operating or functioning.
The engine finally went.
The car died on the road.
The bus we travelled in broke down on the way to town.
The coffee maker broke.
The engine failed on the way to town.
Her eyesight went after the accident.
Meaning : Be unable.
I fail to understand your motives.
Meaning : Judge unacceptable.
The teacher failed six students.
Meaning : Fall short in what is expected.
She failed in her obligations as a good daughter-in-law.
We must not fail his obligation to the victims of the Holocaust.
Meaning : Become bankrupt or insolvent. Fail financially and close.
The toy company went bankrupt after the competition hired cheap Mexican labor.
A number of banks failed that year.
Meaning : Get worse.
Her health is declining.