adjective
being up to particular standard or level especially in being up to date in knowledge
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kept abreast of the latest developments
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constant revision keeps the book au courant
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always au fait on the latest events
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up on the news
• Syn: ↑abreast, ↑au courant, ↑au fait
• Similar to: ↑informed
* * *
well informed about
he was up on the latest methods
Useful english dictionary. 2012.