abreast Meaning, Definition & Usage

  1. adjective satellite being up to particular standard or level especially in being up to date in knowledge
    up on; au courant; au fait.
    • kept abreast of the latest developments
    • constant revision keeps the book au courant
    • always au fait on the latest events
    • up on the news
  2. adverb alongside each other, facing in the same direction

WordNet

A*breast" adverb
Etymology
Pref. a- + breast.
Definitions
  1. Side by side, with breasts in a line; as, "Two men could hardly walk abreast." Macaulay.
  2. (Naut.) Side by side; also, opposite; over against; on a line with the vessel's beam; -- with of.
  3. Up to a certain level or line; equally advanced; as, to keep abreast of [or with] the present state of science.
  4. At the same time; simultaneously. Obs.
    Abreast therewith began a convocation. Fuller.

Webster 1913