A bill of health that states that there is no infectious disease present in a ship, or its port of departure. / (figuratively, by extension) A statement that indicates that there are no obvious problems.

A certificate stating whether or not there is infectious disease aboard a ship or in a port of departure, given to the ship's master to present at the next port of arrival

(idiomatic) To identify something exactly; to arrive at exactly the right answer.

Alternative spelling of headbutt

Alternative spelling of headbutt

The part of a seat designed to support the sitter's head.

The military installation from which troops are commanded and orders are issued; the military unit consisting of a commander and his support staff.

A screwdriver with a '+' shaped head for turning screws so socketed. / A screw turned by such a screwdriver.

Used other than figuratively or idiomatically: see cry, for, help. / (idiomatic) Acting out as a means of displaying a subconscious desire for attention or help.

(idiomatic) a close race or contest in which no winner is apparent