What Does It Mean?

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From our dictionary:

ex•ac•er•bate

(ig•zas'ur•bAt", ek•sas'-),
v.t., -bat•ed, -bat•ing.
1. to increase the severity, bitterness, or violence of (disease, ill feeling, etc.); aggravate.
2. to embitter the feelings of (a person); irritate; exasperate.