arrest, death, search
The king refused to sign the death warrant for his old friend.

royal

authorize, grant, issue, serve, sign
The commissioner has issued a warrant for her arrest. | The police served a warrant on him.

get, obtain | execute
Police who executed a search warrant found a substantial amount of stolen property on the premises.

card

without a ~
In certain circumstances, police may enter premises without a warrant.

~ for

hardly
The TV appearance was so brief that it hardly warranted comment.

be important/serious/severe enough to
They do not consider the case serious enough to warrant a government enquiry.