thread2 [transitive usually + adverb/preposition]
to put a thread, string, rope etc through a hole:
Will you thread the needle for me?
thread something through something
Tom threaded the rope through the safety harness.
to put a film, tape etc correctly through parts of a camera, projector, or tape recorder
to connect two or more objects by pushing something such as string through a hole in them:
Sue threaded the glass beads onto a piece of heavy string.
to move through a place by carefully going around things that are blocking your way:
She came towards me, threading her way through the crowd.