(American football) Either of two imaginary lines across the football field touching one of the two apices of the football which point toward either the defensive side or the offensive side before the center is allowed to touch the ball before each play.

(American football) A player for the team in possession of the ball who lines up behind the line of scrimmage at the start of a play.

(American football) The scrimmage line on the offensive side of the football field. / (American football) Offensive line.

(transitive) To rebuke, to reprimand, or to admonish, often in a harsh, angry, direct way. / (transitive) To count (members of a sequence), to enumerate.

(American football) A pass made in a backward direction.

Used other than figuratively or idiomatically: see piece, cake. / (idiomatic) A job, task or other activity that is pleasant – or, by extension, easy or simple.

(countable) A place (building, office, shop, or counter) concerned with the business of delivering letters, post or mail and selling stamps, etc. / (countable) An organisation that delivers letters.

(idiomatic) Talking a lot, especially without saying anything of value or meaning.

A set of rules dictating acceptable behaviour and decisions in a specified environment.

(bingo) ninety