WordReference Random House Learner's Dictionary of American English © 2019
de•duce /dɪˈdus, -ˈdyus/USA pronunciation   v.,  -duced, -duc•ing. 
  1. to figure out (something) as a conclusion from something else;
    infer: [ + obj]:to deduce the path of the hurricane.[ + (that) clause]:From her conversation I deduced that she had a large family.
de•duc•i•ble, adj. See -duc-.

WordReference Random House Unabridged Dictionary of American English © 2019
de•duce  (di do̅o̅s, -dyo̅o̅s),USA pronunciation v.t.,  -duced, -duc•ing. 
  1. to derive as a conclusion from something known or assumed;
    infer:From the evidence the detective deduced that the gardener had done it.
  2. to trace the derivation of;
    trace the course of:to deduce one's lineage.
de•duci•ble, adj. 
de•duc′i•bili•ty, de•duci•ble•ness, n. 
de•duci•bly, adv. 
  • Latin dēdūcere to lead down, derive, equivalent. to dē- de- + dūcere to lead, bring
  • 1520–30
    • 1.See corresponding entry in Unabridged conclude, reason, gather, determine.

Collins Concise English Dictionary © HarperCollins Publishers::

deduce /dɪˈdjuːs/ vb (transitive)
  1. (may take a clause as object) to reach (a conclusion about something) by reasoning; conclude (that); infer
  2. archaic to trace the origin, course, or derivation of
Etymology: 15th Century: from Latin dēdūcere to lead away, derive, from de- + dūcere to lead

deˈducible adj

'deduce' also found in these entries:

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