Definitionen
1.AdverbSide by side and facing forward. .mw-parser-output .defdate{font-size:smaller}
2.AdverbAlongside; parallel to.
3.AdverbInformed, well-informed, familiar, acquainted.
4.AdverbFollowed by of or with: up to a certain level or line; equally advanced."She believes it is important to keep abreast of new scientific developments."
5.AdverbBreast high (of an advancing wave)."The west wind blew a tempest, and, according to the common expression, brought in the water [of the Solway] three foot abreast."
6.AdverbSide by side; also, opposite; on a line with the vessel's beam.
7.AdverbAt the same time; simultaneously.
8.AdjectiveSide by side, facing forward.
9.AdjectiveAlongside; parallel to.
10.AdjectiveInformed, well-informed, familiar, acquainted.
11.AdjectiveUp to a certain level or line; equally advanced"to keep abreast of [or with] the present state of science"
12.AdjectiveSide by side; also, opposite; over against; on a line with the vessel's beam.
13.PrepositionAbreast of; alongside."This ship sank abreast the island."