This is a glossary of terms used in Canadian football. The Glossary of American football article also covers many terms that are also used in the Canadian version of the game. Canadian Football League The largest professional Canadian football league, with 9 teams split into two divisions each (West and East). Canadian Junior Football League The largest non-professional minor junior football league in Canada. conversion An untimed down awarded to a team that has just scored a touchdown. At levels below the CFL, including U Sports, the scoring team receives possession on the opponent's 5-yard line. In the CFL, the scoring team receives possession on the opponent's 25-yard line if it attempts a place kick, but at the 3-yard line if it chooses to run a standard scrimmage play. A place kick or drop kick through the uprights is worth 1 point; a play from scrimmage that would result in an offensive touchdown at other times in the game is worth 2 points. (This play is formally called a "try" in American football, but the terms "conversion", "PAT" [point after touchdown], and "point after" are more commonly used; the scrimmage play is called a "two-point conversion".) convert see: conversion. cornerback A defensive position on scrimmages. Typical formations include two cornerbacks, whose main duty is to cover wide receivers. See also defensive back. defensive back One of the players whose main duty is to cover wide receivers. Typical defensive formations include five defensive backs: two cornerbacks, two defensive halfbacks, and one safety. defensive end See defensive lineman. defensive halfback A defensive position on scrimmages. Typical formations include two defensive halfbacks, one on each side, but deeper than the cornerbacks. Their main duty is to cover wide receivers. See also defensive back. defensive lineman One of the players who line up opposite the offensive line on scrimmages. In a "four-three" formation, there are four defensive linemen: two defensive tackles and two defensive ends. In a "three-four" formation, there are three defensive linemen: one nose tackle and two defensive ends. defensive tackle See defensive lineman. dribbled ball A dribbled ball is one that has been kicked while not in possession of a player, for example, a loose ball following a fumble, a blocked kick, a kickoff, or a kick from scrimmage. The kicker of the dribbled ball and any player onside when the ball was kicked may legally recover the ball. illegal procedure