thread

He walked. To the corner of Hamilton Place and Picadilly, and there stayed for a while, for it is a romantic station by night. The vague and careless rain looked like threads of gossamer silver passing across the light of the arc-lamps.

All of these essays have a common thread.

I was pondering these things, when an incident, and a somewhat unexpected one, broke the thread of my musings.

A neat courtier, / Of a most elegant thread.