any triangular fore-and-aft sail (set forward of the foremast)
source: WordNet 3.0
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.
source: Webster 1913
One that jibs, or balks; a jibber.
source: Webster 1913
verb
refuse to comply
source: WordNet 3.0
shift from one side of the ship to the other
The sail jibbed wildly.
source: WordNet 3.0
To move restively backward or sidewise, -- said of a horse; to balk.
source: Webster 1913
To shift, or swing round, as a sail, boom, yard, etc., as in tacking.