backer — A backer is someone who helps or supports a project, organization, or person, often by giving or lending money.
blacker — lacking hue and brightness; absorbing light without reflecting any of the rays composing it.
cracker — A cracker is a thin, crisp biscuit which is often eaten with cheese.
hacker — a person, as an artist or writer, who exploits, for money, his or her creative ability or training in the production of dull, unimaginative, and trite work; one who produces banal and mediocre work in the hope of gaining commercial success in the arts: As a painter, he was little more than a hack.
lacquer — a protective coating consisting of a resin, cellulose ester, or both, dissolved in a volatile solvent, sometimes with pigment added.
packer — a group of things wrapped or tied together for easy handling or carrying; a bundle, especially one to be carried on the back of an animal or a person: a mule pack; a hiker's pack.
graham cracker — a semisweet cracker, usually rectangular in shape, made chiefly of whole-wheat flour.
oyster cracker — a small, round, usually salted cracker, served with oysters, soup, etc.
soda cracker — a thin, crisp cracker or wafer prepared from a yeast dough that has been neutralized by baking soda.
Four-or-more syllable rhymes
catalytic cracker — a unit in an oil refinery in which mineral oils with high boiling points are converted to fuels with lower boiling points by a catalytic process
