"reining" is probably misspelled. Trying rein instead Definition of rein
reining
1. [ noun ] one of a pair of long straps (usually connected to the bit or the headpiece) used to control a horse
Related terms: strap bearing_rein leading_rein bridle harness
2. [ verb ] control and direct with or as if by reins; as of a horse
Synonyms: draw_rein rein_in harness
Related terms: control
3. [ verb ] stop or check by or as if by a pull at the reins
Synonyms: rein_in
Examples:

"He reined in his horses in front of the post office"

Related terms: stop pull
4. [ verb ] stop or slow up one's horse or oneself by or as if by pulling the reins
Synonyms: rein_in
Examples:

"They reined in in front of the post office"

Related terms: stop driving
5. [ verb ] keep in check
Synonyms: harness rule
Examples:

"rule one's temper"

Related terms: restrict
6. [ noun ] Last name, frequency rank in the U.S. is 11968
7. [ noun ] any means of control
Examples:

"he took up the reins of government"

Related terms: control rule
Similar spelling:   Reininger
  renewing
  Renninger
  Remington
  ruining
  raining
  remains
  reminisce