abeam

kyljittäin, poikittain, poikittaissuunnassa puhekieltä On the beam; at a right angle to the centerline or keel of a vessel FM 55-501 Marine Crewman’s Handbook or aircraft; being at a bearing approximately 090 degree Degrees or 270 Degrees relative JP 1-02 Department of Defense Dictionary of Military and Associated Terms. (defdate)(R:SOED5)
puhekieltä alongside Alongside or abreast; opposite the center of the side of the ship or aircraft. (defdate)
(quote-book)

The island was directly abeam of us.

She came abeam the crippled ship.