I. noun see: one Date: 13th century the one, particular, or present occasion, purpose, or use , the time being, II. adjective Date: 1884 occurring, used, or made only once or for a special occasion
NONCE
Meaning of NONCE in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012