level (general) / level (measuring instrument) / level, The stage of a video game

(video games) difficulty level

(transitive) to bring up to standard, to bring up to scratch; to brush up on (a skill) / (reflexive, transitive with en) to brush up on (a skill)

(transitive) to bring up to standard, to upgrade, to update / (reflexive, transitive with en) to bring oneself up to speed, to bring oneself up to date, to improve one's knowledge of

brush-up (review of a topic to be learned)

standard of living

level crossing

plural of passage à niveau

spirit level, bubble level

upgrade