lock-up option lock up • lockup safety valve · · · Info · Definitions · Characters · · lock-up option · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) an option to buy the crown jewels offered to a white knight in order to forestall a hostile takeover. Synonyms: lock-up option. · · Noun Definition 1 Characters · · space U+0020 - hyphen-minus U+002D c latin small letter c U+0063 i latin small letter i U+0069 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074 u latin small letter u U+0075