A proverb meaning that although the world seems large, it's actually small because people and connections often turn out to overlap—'it's a small world.'
出張先で大学時代の友人に会った。世間は広いようで狭いね。
I ran into a college friend on a business trip. It's a small world, isn't it?
あの作家の父が僕の隣の家に住んでいるとは。世間は広いようで狭い。
I couldn't believe that writer's father lives next door to me. It's a small world.
趣味の集まりで偶然幼なじみに再会した。世間は広いようで狭いというのは本当だ。
I unexpectedly met a childhood friend at a hobby meetup. 'It's a small world' is true.