amplification

UK: /ˌæmplɪfɪˈkeɪʃ^ən/ US: (am′plə fi kā′shən)

WordReference Random House Unabridged Dictionary of American English © 2026

am•pli•fi•ca•tion  (am′plə fi kā′shən), n. 

1. the act of amplifying or the state of being amplified.
2. expansion of a statement, narrative, etc., as for rhetorical purposes:
   In the revision, the story underwent considerable amplification.
3. a statement, narrative, etc., so expanded:
   The text of the second edition was an amplification.
4. the matter or substance used to expand an idea, statement, or the like:
   He added an extra paragraph to his speech as an amplification.
5. Electricity increase in the strength of current, voltage, or power.
6. Genetics See gene amplification. 

• Latin amplificātiōn- (stem of amplificātiō). See ample, -i-, -fication
• 1540–50

Collins Concise English Dictionary © HarperCollins Publishers::

amplification / ˌæmplɪfɪˈkeɪʃən/ noun

1. the act or result of amplifying
2. material added to a statement, story, etc, in order to expand or clarify it
3. a statement, story, etc, with such additional material
4. the increase in strength of an electrical signal by means of an amplifier
5. another word for gain113