murder-n; 3 Senses

Sense Number 1: unlawful killing of a person

Commentary: MURDER[+event][+killing][+unlawful][+of_person]

Examples:
The papers reported the stabbing murder of the film director.
He was convicted of first-degree murder of the elderly couple.
Pro-lifers argue that abortion is murder, pro-choicers disagree.

Mappings:
PropBank: murder.01
WordNet 3.0 Sense Numbers: 1

Sense Number 2: a very difficult task or activity

Commentary: MURDER[+event][+task][+difficult][+extremely]

Examples:
His first week in the emergency room was murder for the young intern.
It will be murder to remove all the old paint and varnish from the crown moulding of this room.

Mappings:
PropBank: NM
WordNet 0.0 Sense Numbers: 1a

Sense Number 3: a cause of adversity

Commentary: MURDER[+role][+event][+cause][+of_adversity]

Examples:
That exercise can be murder on your lower back muscles.
The recent inability to correctly assess financial risk has been murder for the stock market.

Mappings:
PropBank: NM
WordNet 0.0 Sense Numbers: 1b