take advantage is a verb meaning "draw advantages from". It carries 2 recorded senses.
draw advantages from
“he is capitalizing on her mistake”
“she took advantage of his absence to meet her lover”
make excessive use of
“You are taking advantage of my good will!”
“She is trespassing upon my privacy”
Definitions, synonyms and semantic relations for take advantage come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.