How do you spell Sufficient

Available Definitions:
1)  a. - Equal to the end proposed; adequate to wants; enough; ample; competent; as, provision sufficient for the family; an army sufficient to defend the country.
2)  a. - Possessing adequate talents or accomplishments; of competent power or ability; qualified; fit.
3)  a. - Capable of meeting obligations; responsible.
4)  a. - Self-sufficient; self-satisfied; content.