A requirement for something; something needed.
Lack of means of subsistence; poverty; indigence; destitution.
To be obliged or required (to do something).
To be required; to be necessary.
To want strongly; to feel that one must have something.
To have an absolute requirement for.
The quality or condition of being urgent.
Insistence, pressure, urge.
A sudden and compelling need to urinate that is difficult to defer, associated with conditions such as urinary tract infections and overactive bladder.