A*breast" (#), adv. [Pref. a- + breast.]

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.