旅 is a bound morpheme (b.f.) that cannot stand alone — it always appears as part of a compound word. Its two main semantic clusters are travel (in 旅行 'travel', 旅游 'tourism', 旅客 'passenger') and military (in 旅 'brigade', 军旅 'military life', 旅长 'brigade commander'). The hexagram sense from the I Ching is extremely rare. When you encounter 旅, look at the other character to determine which meaning is active.