(ĭng′gəl-no͝ok′). inglenook. n. 1. A nook or corner beside an open fireplace. 2. A bench, especially either of two facing benches, placed in a nook or corner beside a fireplace.. 1. A nook or corner beside an open fireplace. 2. A bench, especially either of two facing benches, placed in a nook or corner beside a fireplace.