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

Examples:
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.

Mappings:
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)

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

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

Sense Number 3: to order, demand

Commentary: IDIOM: call_a_halt_to

Examples:
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.

Mappings:
PropBank: NM
WordNet 0.0 Sense Numbers: Idiom