peer
Intransitive VerbTransitive Verb[C/U] Both
pl: peerspast: peeredpp: peereding: peering
The noun usage carries a strong sense of social or professional symmetry. It is frequently used in legal or academic settings to imply a standard of fairness or a shared level of expertise, as in the concept of peer review. It suggests a horizontal relationship rather than a vertical hierarchy.
Countable when referring to an individual equal in status (a peer). Uncountable when referring to the general concept of social equality or a collective rank.