fail

Disappoint, prove undependable to; abandon, forsake.

“His sense of smell failed him this time”

“His strength finally failed him”

Be unsuccessful.

“Where do today's public schools fail?”

“The attempt to rescue the hostages failed miserably”

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”

Stop operating or functioning.

“The engine failed on the way to town”

Prove insufficient.

“The water supply for the town failed after a long drought”

Fail to get a passing grade.

“She studied hard but failed nevertheless”

“Did I fail the test?”

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”

Get worse.

Judge unacceptable.

“The teacher failed six students”

Be unable.

“I fail to understand your motives”

Become bankrupt or insolvent; fail financially and close.

“A number of banks failed that year”