Words similar to necessity

Example sentences for: necessity

How can you use “necessity” in a sentence? Here are some example sentences to help you improve your vocabulary:

By necessity, systematic reviews come many years after hypotheses are first raised, and in the interim recommendations for practice may sway back and forth.
Due to the interconnectivity and interdependency of the electric power grid, information sharing is a necessity for (1) maintaining the reliability of the power supply and (2) conducting business transactions in a deregulated environment.
But political necessity beckons.
And being under the compulsion of no timetable, it does not get panicky under the necessity for such retreat.
Questioning the necessity of the current president is the newly unionized faculty, which recently filed a vote of "no confidence" in President Barbara C. Mossberg over her management style.