Synonym: aught, cipher, cypher, goose egg, nada, naught, nil, nix, nothing, void, zero, zilch, zip, zippo. Similar words: nullify, nullified, null and void, nullification, annul, venule, granule, penultimate. Meaning: [nʌl] 
n. a quantity of no importance. adj. lacking any legal or binding force.
n. a quantity of no importance. adj. lacking any legal or binding force. 
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1) Their actions rendered the contract null and void.
2) This contract is null and void.
3) The election was declared null and void.
4) The contract was declared null and void.
5) They declared the agreement null and void.
6) The agreement will be considered null and void.
7) The court ruled that the claim was null and void.
8) A spokeswoman said the agreement had been declared null and void.
9) There were 909,[http://sentencedict.com/null.html]377 null or void votes.
10) The elections were declared null and void.
11) He decided that the marriage was null and void.
12) So the null hypothesis that it is only unpredictable monetary growth which influences real output can not be rejected.
13) The null hypothesis that can then be tested by using the F distribution as explained in chapter 3.
14) The use of the null hypothesis does have one very practical use.
15) The null hypothesis of no heterogeneity can not be rejected in any of the variants of the model.
16) In effect the researcher uses the null form in order to neutralize his own bias regarding outcome.
17) For the short observations, the null hypothesis is that only Poisson noise is present.
18) Of the votes cast 7 percent were null or void.
19) The researcher may actually expect that the null hypothesis is faulty and should be rejected in favor of the alternative H1.
20) The change in the law makes the previous agreement null and void.
21) Functions have to return an answer, but the value returned by this function is a null string.
22) This eases the problem, because a number of circuits exist which give a complete null at one frequency.
23) On Oct. 28 the Council declared this clause unconstitutional and therefore null and void.
24) Judge Mershon ruled that the agreement was signed under duress, and was therefore null and void.
25) If the contract has not been signed by witnesses, it is considered null and void.
26) When this indicated a probability of less than 0.05 for the null hypothesis Student-Newman-Keuls analyses were performed to determine which values differed significantly.
27) The application of these tests may increase the probability of rejecting the null hypothesis when it is in fact true.
28) My effective vote could be my first preference vote, in which case all my other preferences are null and void.
29) Went in there, saw the judge, and he say the deed was null and void.
30) Such reservations include a warning message, flagging of the citing field or a setting of the citing field to null.