The thread was invisible and infinitely stretchable, and only a mechanism of optical keys, adjusted like glasses, allowed its wearer to observe it.
WIVIWIC:
EN: see
FR: voir
ZH: 看 (kàn)
JA: 見る (miru)
IT: vedere
DE: sehen
ES: ver
RU: ви́деть (vídet')
EO: vidu