贴近 (tiē jìn) means 'close to' in a physical or figurative sense — pressing near something or being closely connected to life/reality. Unlike 亲密 (qīn mì) and 密切 (mì qiè), which describe close relationships or monitoring, 贴近 emphasizes proximity or alignment with something (e.g., a movie贴近 life). 贴 (tiē) is more about sticking or pasting, while 贴近 adds a sense of closeness without adhesion.