Words similar to need

Example sentences for: need

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

I see no reason to accept one of these cases, a pair of sister species of “parasites” (fig wasps) on the same host species, since allopatric speciation of a widespread parasite need not be accompanied by speciation of its host.
And even if the compustat does work, to make the most of the nanotechnological potential of diatoms, we need to know exactly how diatoms make their shells.
Estimated Unmet Legal Need
) The book, they say, is a witty sendup of therapeutic literature, and it also serves as a "seriously legitimate guide for the perplexed" (Benito Rakower, the Washington Post ). Critics also recommend it as a sort of highbrow Cliff's Notes : "You don't need to have read Proust in order to read this book; in fact, once you've read de Botton you don't need to read it at all" (Richard Klein, Voice Literary Supplement ).
Curators also need to access other relevant FlyBase information associated with a gene in order to refine an annotation efficiently.