fail

Poor quality; substandard workmanship.

“The project was full of fail.”

A failure (condition of being unsuccessful)

A failure (something incapable of success)

A failure, especially of a financial transaction (a termination of an action).

A failing grade in an academic examination.

To be unsuccessful.

“Throughout my life, I have always failed.”

Not to achieve a particular stated goal. (Usage note: The direct object of this word is usually an infinitive.)

“The truck failed to start.”

To neglect.

“The report fails to take into account all the mitigating factors.”

Of a machine, etc.: to cease to operate correctly.

“After running five minutes, the engine failed.”

To be wanting to, to be insufficient for, to disappoint, to desert.

To receive one or more non-passing grades in academic pursuits.

“I failed English last year.”

To give a student a non-passing grade in an academic endeavour.

“The professor failed me because I did not complete any of the course assignments.”

To miss attaining; to lose.

To be wanting; to fall short; to be or become deficient in any measure or degree up to total absence.

“The crops failed last year.”

To be affected with want; to come short; to lack; to be deficient or unprovided; used with of.

To fall away; to become diminished; to decline; to decay; to sink.

To deteriorate in respect to vigour, activity, resources, etc.; to become weaker.

“A sick man fails.”

To perish; to die; used of a person.

To err in judgment; to be mistaken.

To become unable to meet one's engagements; especially, to be unable to pay one's debts or discharge one's business obligation; to become bankrupt or insolvent.

That is a failure.

A piece of turf cut from grassland.