1. a: something that is conveyed as a meaning often obscurely or indirectly b: the quality of conveying or implying. 2. a: the quality of being important: moment b: the quality of being statistically significant.
2. something signified, expressed, or intended. 3. the state or quality of being significant. 4. (Statistics) statistics. a. a measure of the confidence that can be placed in a result, esp a substantive causal hypothesis, as not being merely a matter of chance. b. (as modifier): a significance level. Significance is defined as the importance or meaning of something. An example of significance is loving an old watch because it was your father’s. 1  that which is signified; meaning. 2  the quality of being significant; suggestiveness; expressiveness. 3  importance; consequence; moment. The researcher must define in advance the probability of a sampling error (which exists in any test that does not include the entire population). Sample size is an important component of statistical significance in that larger samples are less prone to flukes. A result that is not likely to occur randomly, but rather is likely to be attributable to a specific cause. Statistical significance can be strong or weak, and is important to research in many math-and science-related fields, including medicine, sociology, psychology and biology. Princeton's WordNet (1.00 / 2 votes) Rate this definition: significance (noun). the quality of being significant. do not underestimate the significance of nuclear power. significance, import, implication (noun). a meaning that is not expressly stated but can be inferred. Full Definition of SIGNIFICANCE. 1. a: something that is conveyed as a meaning often obscurely or indirectly b: the quality of conveying or implying. 2. a: the quality of being important: moment b: the quality of being statistically significant. See significance defined for English-language learners.
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define significant