sig·nif·i·cant

[sig-nif-i-kuhnt]
adjective
1.
important; of consequence.
2.
having or expressing a meaning; indicative; suggestive: a significant wink.
3.
Statistics. of or pertaining to observations that are unlikely to occur by chance and that therefore indicate a systematic cause.
noun
4.
something significant; a sign.

Origin:
1570–80; < Latin significant- (stem of significāns), present participle of significāre to signify; see -ant

sig·nif·i·cant·ly, adverb
non·sig·nif·i·cant, adjective
non·sig·nif·i·cant·ly, adverb
su·per·sig·nif·i·cant, adjective
su·per·sig·nif·i·cant·ly, adverb
un·sig·nif·i·cant, adjective
un·sig·nif·i·cant·ly, adverb


1. consequential, momentous, weighty. 2. See expressive.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Significant is always a great word to know.
So is gobo. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.
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World English Dictionary
significant (sɪɡˈnɪfɪkənt) [Click for IPA pronunciation guide]
 
adj
1.  having or expressing a meaning; indicative
2.  having a covert or implied meaning; suggestive
3.  important, notable, or momentous
4.  statistics of or relating to a difference between a result derived from a hypothesis and its observed value that is too large to be attributed to chance and that therefore tends to refute the hypothesis
 
[C16: from Latin significāre to signify]
 
sig'nificantly
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

significant
1570s, from L. significant-, stem of significans, prp. of significare (see signify).
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
But trials take time, often years, to enroll a sufficient number of
  participants to generate statistically significant results.
But whether such an arrest would end up triggering significant unrest is an
  open question.
Besides the dollar, the euro has played a significant role in global trade and
  finance.
The entry from the logbook was a significant piece of evidence.
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