Definition of expound

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ex·pound    (k-spound) KEY 

VERB:
ex·pound·ed, ex·pound·ing, ex·pounds
VERB:
tr.

1. To give a detailed statement of; set forth: expounded the intricacies of the new tax law.
2. To explain in detail; elucidate: The speaker expounded the approach of positive thinking. See Synonyms at explain.

VERB:
intr.

To make a detailed statement: The professor was expounding on a favorite topic.

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ETYMOLOGY:
Middle English expounden, from Anglo-Norman espoundre, from Latin expnere : ex-, ex- + pnere, to place; see apo- in Indo-European roots

OTHER FORMS:
ex·pounder(Noun)