Emily Dickinson Lexicon

THREAD, or THRED, n. [Sax. thred, thræd; D. draad; Sw. träd; Dan. traad; probably from drawing.]

1. A very small twist of flax, wool, cotton, silk or other fibrous substance, drawn out to considerable length.
2. The filament of a flower. Botany.
3. The filament of any fibrous substance, as of bark.
4. A fine filament or line of gold or silver.
5. Air-threads, the fine white filaments which are seen floating in the air in summer, the production of spiders.
6. Something continued in a long course or tenor; as, the thread of a discourse. Burnet.
7. The prominent spiral part of a screw.