Noah Webster's Dictionary 1. (adv.) Side by side; also, up to date; as, keeping abreast of current events. 2. (adv.) Side by side; also, opposite; over against; on a line with the vessel's beam; -- with of. 3. (adv.) Up to a certain level or line; equally advanced; as, to keep abreast of [or with] the present state of science. 4. (adv.) At the same time; simultaneously.

Multi-Version Concordance Abreast (1 Occurrence) Acts 27:7 And sailing slowly for many days, and having with difficulty got abreast of Cnidus, the wind not suffering us, we sailed under the lee of Crete abreast of Salmone; (DBY)