Abreast

Adverb

 * 1) Informed, well-informed, familiar, acquainted
 * 2) Side by side, facing forward, with breasts in a line; as,
 * Two men could hardly walk abreast. - Thomas Babington Macaulay
 * 1)  Side by side; also, opposite; over against; on a line with the vessel's beam; – with of.
 * 2) Up to a certain level or line; equally advanced; as, to keep abreast of [or with] the present state of science.
 * : At the same time; simultaneously
 * Abreast therewith began a convocation. - Thomas Fuller

Thesaurus
abeam; acquainted; along by; alongside; au courant; au fait; beside; by; coextensively; collaterally; contemporary; conversant; equidistantly; in parallel; informed; nondivergently; parallelly; parallelwise; red-hot; side-by-side; up; up-to-date; up-to-the-minute; versed