jib header
Webster's Dictionary (GCIDE)
1.(Naut.) A triangular sail set upon a stay or halyard extending from the foremast or fore-topmast to the bowsprit or the jib boom. Large vessels often carry several jibs; as, inner jib; outer jib; flying jib; etc. [1913 Webster]
2.(Mach.) The projecting arm of a crane, from which the load is suspended. [1913 Webster]
3.One that jibs, or balks; a jibber. [Webster 1913 Suppl.]
4.A stationary condition; a standstill. [Webster 1913 Suppl.]
Jib boom (Naut.), a spar or boom which serves as an extension of the bowsprit. It is sometimes extended by another spar called the flying jib boom. [Written also gib boom.]
Jib crane (Mach.), a crane having a horizontal jib on which a trolley moves, bearing the load.
Jib door (Arch.), a door made flush with the wall, without dressings or moldings; a disguised door.
Jib header (Naut.), a gaff-topsail, shaped like a jib; a jib-headed topsail.
Jib topsail (Naut.), a small jib set above and outside of all the other jibs.
The cut of one's jib, one's outward appearance. [Colloq.] --Sir W. Scott. [1913 Webster]