The Collaborative International Dictionary
Jib \Jib\ (j[i^]b), n. [Named from its shifting from side to side. See Jib, v. i.., Jibe.]
(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.
(Mach.) The projecting arm of a crane, from which the load is suspended.
One that jibs, or balks; a jibber.
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A stationary condition; a standstill.
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.
Usage examples of "jib topsail".
A few moments later the main-topsail was set, followed by the jib topsail, and while the men afted the sheets under Southwick's orders, Ramage looked at his watch and then at the luffs of the sails.