One thing that separates intermediate Mandarin from something that sounds genuinely advanced is knowing which word to reach for when things are murky — when nothing's confirmed yet, but something's clearly in the air.

Three ways to say "there are signs" — when do you use which?

1/ 风声 (fēng shēng) — rumours, word on the street

Casual and informal. Unverified information circulating through the whisper network. Often preceded by 有 — "there's word that..."

Example: There were already rumours about layoffs a year ago. 早在去年就有了些风声。

2/ 端倪 (duān ní) — early traces, a clue something is developing

Slightly literary and reflective. The subtle signs you can only join up in hindsight — the dots you couldn't connect at the time.

Example: Only after the AI requirements were announced did people start connecting the earlier dots. 公布了对AI介入工作流的具体要求后，才察觉之前就有端倪。

3/ 征兆 (zhēng zhào) — sign, indicator, omen

Neutral to slightly formal. A concrete, visible signal that something is coming. Works in medical, social, and business contexts.

Example: The layoffs didn't come out of nowhere — there were signs well before. 清退外包并非毫无征兆。

Key difference: 风声 is what people are saying. 端倪 is what you can see, if you know where to look. 征兆 is a signal you can point to.