The crossword solution for the term ONE OF THE 15 ACROSS is ORANG, which is a five-letter word. The term ORANG is derived from the Malay and Indonesian word for 'PERSON' or 'human being'. It is also used to refer to the indigenous people of Malaysia and Indonesia. In addition, it is used to describe the Austronesian language family, which includes more than 1, 500 languages spoken in Southeast Asia, Taiwan, Madagascar, and parts of the Pacific Islands.