adj.
Function: adjective
Date: 15th century
1 a : extending from one surface to another <a through mortise> b : admitting free or continuous passage : DIRECT <a through road>
2 a (1) : going from point of origin to destination without change or reshipment <a through train> (2) : of or relating to such movement <a through ticket> b : initiated at and destined for points outside a local zone < through traffic>
3 a : arrived at completion or accomplishment <is through with the job> b : WASHED-UP , FINISHED