For international lawyers and translators alike, the Organisation for Economic Co-operation and Development (OECD) publishes a number of comprehensive glossaries, some of which are bilingual or multilingual. I find the Corruption and Economics glossaries particularly useful. They are available as a print version, but can also be purchased in PDF format allowing them to be easily and quickly searched. Many can also be accessed through your browser.
Other subjects include, inter alia, fisheries, transport, insurance, environmental enforcement, statistics and compliance. Definitions are derived from international guidelines and standards.