cast away

cast away (third-person singular simple present casts away, present participle casting away, simple past and past participle cast away)

1. To discard.

   She cast away her bridal dress along with other reminders of the marriage.

2. (nautical) To abandon or maroon.

   The mutineers cast away the ship's officers in the longboat.

   • 1866 August 18, “LAST NEWS OF ANNA BISHOP”, in The Musical World‎^[1], volume 44, number 33, London, →OCLC, page 521:

     Intelligence has been received at Hong Kong of the total loss of the ship Libelle while on a voyage to that port from San Francisco, having on board a valuable cargo and specie to the extent of £76,000 in dollars, and a number of passengers, among whom were Madame Anna Bishop, Miss Phelan, Mr. M. Schrutz, and Mr. Charles Lascelles, of the English Opera Company, who, with other artists, were on a musical tour. The ship was cast away on the night of the 4th of March, on an uninhabited and dangerous reef called Wake Island, in the China Seas.

3. (computing, programming, transitive) To eliminate by means of a cast operation.
   • 1995, Embedded Systems Programming, volume 8, page 180:

     If you want to change a class member inside a const member function, the traditional approach is to cast away constness by saying (X*)this.

• (discard): See at discard

• castaway

• cast aside
• cast down