Third-person singular simple present indicative form of learn.(verb)
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Use "learns" in a sentence
"The wizard of the title learns various lessons about himself."
"The aim is to test hypotheses about how the brain "learns" addictive behaviors."
"The only way the human brain learns is to be fed information of all kinds, so it can be sorted, adopted/rejected for what it’s personally worth, and weigh the results against the results of others."