Meaning of REIN IN

WordNet Dictionary
	Definition:		[v]  stop or check by or as if by a pull at the reins; "He reined in his horses in front of the post office" [v]  stop or slow up one's horse or oneself by or as if by pulling the reins; "They reined in in front of the post office" [v]  control and direct with or as if by reins; as of a horse
	Websites:
	Synonyms:		draw rein, harness, rein, rein
	See Also:		command, control, halt, pull, stop