Abreast

A·breast

Abreast

adv.
  1. Side by side, with breasts in a line; as, “Two men could hardly walk abreast.”
  2. Side by side; also, opposite; over against; on a line with the vessel's beam; -- with of. (Naut.)
  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.