Definitions:

1. A nautical term used to describe a direction or position relative to a vessel. ADVERB
   • The captain of the ship ordered the crew to set the course abeam.
   • The lighthouse is directly abeam to our port side.
2. Means directly off the side of the boat, either to the port or starboard side. ADVERB
   • The captain instructed the crew to keep the buoy abeam as a referene point while navigating through the channel.
3. Refers to a direction that is perpendicular to the keel of a ship or at a right angle to the vessel's longitudinal axis. ADVERB
   • A large ship aopeared abeam, heading in the opposite direction.

Synonyms:

• athwart
• beam
• broadside