1. Being up to particular standard or level especially in being up to date in knowledge
   "constant revision keeps the book au courant"
   - abreast, au fait, up on, apace [N. Amer]

See also: informed

• conservation of electricity
• conservation of energy
• conservation of mass
• conservation of matter
• conservation of momentum
• conservation of parity
• conservational
• conservationist
• conservatism
• conservative
• Conservative Jew
• Conservative Judaism
• Conservative Party
• Conservative Party of Canada
• conservatively
• conservativism
• conservativist
• conservatoire
• conservator
• wood tick
• wood vinegar
• wood violet
• wood vise
• wood warbler
• wood widgeon