verb/mɛ.tʁ‿a ni.vo/
to bring up to standard (a skill, subject, one's knowledge, an unemployed person, etc.); to upgrade, to update; to bring up to standard, to retrofit (equipment, infrastructure, software, etc.); to bring oneself up to speed on, to bring oneself up to date on, to improve one's knowledge of
“se mettre à niveau en néerlandais”