A type of mine where rock or minerals are extracted from the earth by their removal from an open pit or borrow.

(programming, object-oriented programming) A principle that states that software entities (such as classes, modules, and functions) should be open for extension, but closed for modification.

simple past tense and past participle of open someone's eyes

Third-person singular simple present indicative form of open someone's eyes

present participle of open someone's eyes

King's Pawn Game

(chess) A half-open file.

(chess) A file with only pawns of one color on it.

plural of semi-open file

plural of half-open file