'crossing guard' definitions:

Definition of 'crossing guard'

From: WordNet
noun
Someone who helps people (especially children) at a traffic crossing

Definition of 'crossing guard'

From: GCIDE
  • crossing guard \cross"ing guard`\, n. a person who stands at a street crossing to assist children to cross the street safely; -- usually used near schools during the times that children are entering or leaving the school.
  • Note: Crossing guards may be employed by a municipality as auxiliary police officers, or may be unpaid volunteers. Some wear uniforms, others do not. They are commonly older citizens who are retired or not employed full-time at other tasks. At some schools, older students from the school are trained to perform the function of crossing guards. [PJC]