Of, resembling, or capable of forming a thread; filamentous. / (of a pulse) weak.

Alternative form of triple-decker (“type of sandwich”) / Alternative form of triple-decker (“type of bus”) / Alternative form of triple-decker (“type of apartment building”)

Having three strands or layers

Yarn having three strands

(poker slang) three of a kind kings

(card games) A hand including three cards of the same rank.

plural of threader

(chemistry) Any of several forms of extended covalent bond, deficient in one electron, joining three atoms.

(informal) A small, agile group of startup innovators with a big idea, passion, and modest resources.

Quickly.