In nautical|lang=en terms the difference between beam and girt
is that
beam is (nautical) the maximum width of a vessel while
girt is (nautical) bound by a cable; used of a vessel so moored by two anchors that she swings against one of the cables by force of the current or tide.
As nouns the difference between beam and girt
is that
beam is any large piece of timber or iron long in proportion to its thickness, and prepared for use while
girt is a horizontal structural member of post and beam architecture, typically attached to bridge two or more vertical members such as corner posts.
As verbs the difference between beam and girt
is that
beam is (ambitransitive) to emit beams of light; shine; radiate while
girt is to gird or
girt can be (
gird).
As an adjective girt is
(nautical) bound by a cable; used of a vessel so moored by two anchors that she swings against one of the cables by force of the current or tide.