Informed, well-informed, familiar, acquainted.
Up to a certain level or line; equally advanced
Alongside; parallel to.
Side by side; also, opposite; over against; on a line with the vessel's beam.
Side by side, facing forward.
Abreast of; alongside.
Side by side and facing forward.
Alongside; parallel to.
Followed by of or with: up to a certain level or line; equally advanced.
Informed, well-informed, familiar, acquainted.
Side by side; also, opposite; on a line with the vessel's beam.
Breast high (of an advancing wave).
All-wise; claiming universal knowledge.