The Nuffic Glossary is a list with explanations of terms used in Dutch education.
In the American system, there are four levels of academic staff. At the top is the 'professor' ('hoogleraar'). An 'associate professor', one level down, has tenure. An 'assistant professor', two levels down, does not have tenure. The entry-level position is 'instructor'. If you choose to use the American terms rather than British terms (professor, senior lecturer/scientist, lecturer) be aware that you will be calling many people 'professor' whom you would not call 'hoogleraar'.