[1] : WordNet (r) 2.0

abreast of
     adj : being up to particular standard or level especially in being
           up to date in knowledge; "kept abreast of the latest
           developments"; "constant revision keeps the book au
           courant"; "always au fait on the latest events"; "up on
           the news" syn: abreast ofp, au courant, au fait,
            up onp
see also:
abreast ofp au courant au fait up onp 

Abreast >> A Words
Abreast, definition of term: Abreast
abreast_pag1.html

Abreast Of >> A Words
Abreast Of, definition of term: Abreast Of
abreast+of_pag1.html