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1. Keeping pace with someone or something. Charlie finished the race in second place because he could not stay abreast of the winner.
2. Knowing the most current information about a person, thing, or event. Typically used with the verb "keep." There are so many software vulnerabilities that it's difficult to keep abreast of them all. I'm worried about Stu, so please keep me abreast of any changes in his health.
*abreast of someone or something
1. Lit. keeping even with someone or something. (*Typically: be ~; get ~; keep ~; Stay ~.) I had to run hard to stay abreast of Sally.
2. Fig. knowing the news about someone or something. (*Typically: be ~; get ~; keep ~; Stay ~.) The press corps has to keep abreast of the president.
keep abreast of something
to have the most recent information about something stay abreast of something This new service helps doctors keep abreast of the newest drugs available.
stay abreast of something
to have the most recent information about something keep abreast of something Regional conferences provide the opportunity for everyone to stay abreast of the latest developments in our field of research.Related vocabulary: up to speed
keep abreast of
Stay or cause to stay up-to-date with, as in He's keeping abreast of the latest weather reports, or Please keep me abreast of any change in his condition. This term alludes to the nautical sense of abreast, which describes ships keeping up with each other. [Late 1600s]