name, noun, verb ·Moderate ·College level

Definitions

Noun

1. 1
   plural of rein form-of, plural
2. 2
   The kidneys. archaic
3. 3
   The lower part of the back.
4. 4
   The loins.
5. 5
   The parts of a vault between the crown and the spring or abutment, including, and having especial reference to, the loading or filling behind the shell of the vault.

Verb

1. 1
   third-person singular simple present indicative of rein form-of, indicative, present, singular, third-person

Proper Noun

1. 1
   plural of Rein form-of, plural

Synonyms

All synonyms

back bandbackstrapbearing reinbellybandbilbobit

Example

More examples

"Before the horse race begins, the jockeys grip the reins tightly to restrain the impatient horses."

Etymology

Etymology 1

See rein

Etymology 2

From Old French reins, see also rein in French.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.