Definition of oboes:
(n) :
(music) A soprano and melody wind instrument in the modern orchestra and wind ensemble. It is a smaller instrument and generally made of grenadilla wood. It is a member of the double reed family.
(n) :
(World War II era, joint US/RAF) radiotelephony clear-code word for the letter O.
(n) :
(programming) Initialism of off-by-one error. [(programming) A logic error where a value, typically the number of iterations of a loop, is specified incorrectly, being either 1 less or 1 more than it should be.]