渺 rarely stands alone — it almost always appears in literary compounds. Top three:
渺小 (miǎoxiǎo) 'tiny, insignificant' (often metaphorical: 'one feels small'),
渺茫 (miǎománg) 'distant and indistinct, faint' (used of hopes, news, prospects),
浩渺 (hàomiǎo) 'vast and boundless' (used of water). Note the
氵 'water' radical — the original meaning is 'an expanse of water so wide it blurs into the horizon.'
