Defn: 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 jibe; as, inner jib; outer jib; flying jib; etc.

2. (Mach.)

Defn: The projecting arm of a crane, from which the load is suspended. 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.

JIB
Jib, v. i. Etym: [Connected with jibe; cf. OF. giber to shake.]

Defn: To move restively backward or sidewise, — said of a horse; to balk. [Written also jibb.] [Eng.]

JIB; JIBB
Jib, v. t. & i. [imp. & p. p. Jibbed; p. pr. & vb. n. Jibbing.] Also
Jibb. [Cf. Jib a sail, Gybe.] (Chiefly Naut.)

Defn: To shift, or swing round, as a sail, boom, yard, etc., as in tacking.

JIBBER
Jib"ber, n.

Defn: A horse that jibs. [Eng.]

JIBE
Jibe, v. t. [imp. & p. p. Jibed; p. pr. & vb. n. Jibing.] Etym: [Cf.
Dan. gibbe, D. gijpen, v. i., and dial. Sw. gippa to jerk. Cf. Jib,
n. & v. i.] (Naut.)