To be wanting to, to be insufficient for, to disappoint, to desert; to disappoint one's expectations.
Not to achieve a particular stated goal. (Usage note: The direct object of this word is usually an infinitive.)
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.
To receive one or more non-passing grades in academic pursuits.
To give a student a non-passing grade in an academic endeavour.
To be wanting; to fall short; to be or become deficient in any measure or degree up to total absence.
To neglect.
To be unsuccessful.
Of a machine, etc.: to cease to operate correctly.
Unsuccessful; inadequate; unacceptable in some way.
A failure, especially of a financial transaction (a termination of an action).
A failure (condition of being unsuccessful).
A failing grade in an academic examination.
Poor quality; substandard workmanship.
A failure (something incapable of success).
A piece of turf cut from grassland.
To put beyond hazard of losing or of not receiving; to make certain; to assure; frequently with against or from, or formerly with of.
To make fast; to close or confine effectually; to render incapable of getting loose or escaping.
To get possession of; to make oneself secure of; to acquire certainly.
To make safe; to relieve from apprehensions of, or exposure to, danger; to guard; to protect.
Free from the danger of theft; safe.
Certain to be achieved or gained; assured.
Free from attack or danger; protected.
Free from the risk of eavesdropping, interception or discovery; secret.
Confident in opinion; not entertaining, or not having reason to entertain, doubt; certain; sure; commonly used with of.
Free from anxiety or doubt; unafraid.
Free from the risk of financial loss; reliable.
Firm and not likely to fail; stable.