Definify.com
Webster 1913 Edition
Abreast
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 science4.
At the same time; simultaneously.
[Obs.]
Abreast
therewith began a convocation. Fuller.
Webster 1828 Edition
Abreast
ABREAST'
,adv.
1.
Side by side; with the breasts in a line.Two men rode abreast.
2.
In marine language, ships are abreast when their heads are equally advanced; and they are abreast of objects when the objects are on a line with the beam. - Hence,Opposite; against; on a line with - as a ship was abreast of Montauk point - A seaman's phrase.