(transitive) To discard or reject something. / (transitive, intransitive, nautical) To let go (a cable or rope securing a vessel to a buoy, wharf, etc.) so that the vessel may make way.

Alternative spelling of castoff

Alternative spelling of castoff

Alternative spelling of sulfur cast

a cast made by pouring prill sulfur into a depression; used forensically to take casts of prints in snow

Alternative spelling of cast iron

Alternative spelling of cast iron

(obsolete, accounting) To perform basic bookkeeping. / (obsolete) To be numerate; to be capable of arithmetic.

(idiomatic) Conclusive action has been taken, so events will proceed in an irreversible manner; the point of no return has been passed; the future is determined; there are no more options.

To discard. / (nautical) To abandon or maroon. / (computing, programming, transitive) To eliminate by means of a cast operation.