say it: am-pluh-fuh-KAY-shuhn
amplification is a noun meaning "addition of extra material or illustration or clarifying detail". It carries 3 recorded senses.
addition of extra material or illustration or clarifying detail
“a few remarks added in amplification and defense”
“an elaboration of the sketch followed”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for amplification come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.