xìn​xī​jiǎn​fáng

echo chamber

  1. information
    (computing, information theory etc.) information; data; signals. In Taiwan, 资讯 zī​xùn is more commonly used for this sense
  2. cocoon
    The protective casing spun by a caterpillar or larva before it turns into a pupa; usually refers to a silkworm cocoon used for making silk.
  3. [house-like structure]
    (bound form) structure or object shaped like or functioning as a house, such as a beehive, a seed pod, or a chamber of the heart