Jo smokes the odd cigarette.3various [only before noun] not specially chosen or collected: Any odd scrap of paper will do.4not in a pair/set [only before noun] separated from a pair or set: an odd shoe odd socks/gloves etc (=not a matching pair of socks etc) He was wearing odd socks.5 odd numberHMN a number that cannot be divided exactly by two, for example 1, 3, 5, 7 etc [??? even number]6 20-odd