say it: SEL-fin-truhst
self-interest is a noun meaning "taking advantage of opportunities without regard for the consequences for others". It carries 2 recorded senses.
taking advantage of opportunities without regard for the consequences for others
concern for your own interests and welfare
Definitions, synonyms and semantic relations for self-interest 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.