1. down line - Noun
2. down line - Adjective
A railway line on which trains travel away from a major terminus.
(travel, aviation) the next and subsequent flights in an itinerary.
If you miss a flight, the airline will likely cancel the down line.
(marketing, often attributive) Member of a multi-level marketing scheme who was recruited by another (their up line) and pay that recruiter a portion of their earnings.
down-line (plural down-lines)
Alternative spelling of down line
down-line (comparative more down-line, superlative most down-line)
Describing a lower level in a hierarchical management structure
down-line