halt-n; 3 Senses

Sense Number 1: the event of coming to a stop, ending something

Commentary: HALT[+event][+transition][+to_stoppage][+complete]
NOTE: refers to the transition of stopping, not the ongoing state of inactivity

The bus came to a halt just before going over the cliff.
Everything came to a complete halt in John's life after his accident. (figurative extension)
The machine came to a halt when the plug came out of the wall.

PropBank: halt.01
WordNet 3.0 Sense Numbers: 2

Sense Number 2: an ongoing state of stoppage, inactivity

Commentary: HALT[+state][+ongoing][+stoppage][+of_activity]
NOTE: implies the span of inactivity, not the transitional moment to it. (Sense 1)

This halt in the negotiating process is hurting both sides.
The halt in the arms race of the past decade may be in jeopardy.

PropBank: halt.01
WordNet 3.0 Sense Numbers: 1, 3

Sense Number 3: to order, demand

Commentary: IDIOM: call_a_halt_to

He has called a halt to any further shipments of oil to that nation.
The community has called for a halt to the drug dealers infestation of their neighborhood.

PropBank: NM
WordNet 0.0 Sense Numbers: Idiom