say it: a-gruh-VAY-shuhn
aggravation is a noun meaning "an exasperated feeling of annoyance". It carries 3 recorded senses.
an exasperated feeling of annoyance
unfriendly behavior that causes anger or resentment
action that makes a problem or a disease (or its symptoms) worse
“the aggravation of her condition resulted from lack of care”
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 aggravation 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.