●In Australian English, British English, Rail transportation, People & Vehicles:
A
, either
by a
or part of a
unit.
●In Oxford University English, Occupations & People:
●In Australian English & British English:
●In American English & People:
The part of a
or
for those
the lower
; the
section.
●In American English & People:
The lower-fare service whose
this part of the
or
;
class.